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Available in 23 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-23" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">23 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Sleurverminderingstelsel" title="Sleurverminderingstelsel – Afrikaans" lang="af" hreflang="af" data-title="Sleurverminderingstelsel" data-language-autonym="Afrikaans" data-language-local-name="Afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/S%C3%BCrt%C3%BCnm%C9%99_azald%C4%B1lmas%C4%B1_sistemi" title="Sürtünmə azaldılması sistemi – Azerbaijani" lang="az" hreflang="az" data-title="Sürtünmə azaldılması sistemi" data-language-autonym="Azərbaycanca" data-language-local-name="Azerbaijani" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Syst%C3%A9m_pro_sn%C3%AD%C5%BEen%C3%AD_odporu" title="Systém pro snížení odporu – Czech" lang="cs" hreflang="cs" data-title="Systém pro snížení odporu" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Drag_Reduction_System" title="Drag Reduction System – German" lang="de" hreflang="de" data-title="Drag Reduction System" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Aler%C3%B3n_trasero_m%C3%B3vil" title="Alerón trasero móvil – Spanish" lang="es" hreflang="es" data-title="Alerón trasero móvil" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B3%D8%A7%D9%85%D8%A7%D9%86%D9%87_%DA%A9%D8%A7%D9%87%D8%B4_%D9%BE%D8%B3%D8%A7%D8%B1" title="سامانه کاهش پسار – Persian" lang="fa" hreflang="fa" data-title="سامانه کاهش پسار" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Syst%C3%A8me_de_r%C3%A9duction_de_la_tra%C3%AEn%C3%A9e" title="Système de réduction de la traînée – French" lang="fr" hreflang="fr" data-title="Système de réduction de la traînée" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/DRS" title="DRS – Galician" lang="gl" hreflang="gl" data-title="DRS" data-language-autonym="Galego" data-language-local-name="Galician" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%93%9C%EB%9E%98%EA%B7%B8_%EB%A6%AC%EB%8D%95%EC%85%98_%EC%8B%9C%EC%8A%A4%ED%85%9C" title="드래그 리덕션 시스템 – Korean" lang="ko" hreflang="ko" data-title="드래그 리덕션 시스템" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Sistem_pengurang_hambatan" title="Sistem pengurang hambatan – Indonesian" lang="id" hreflang="id" data-title="Sistem pengurang hambatan" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Drag_Reduction_System" title="Drag Reduction System – Italian" lang="it" hreflang="it" data-title="Drag Reduction System" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/DRS" title="DRS – Lithuanian" lang="lt" hreflang="lt" data-title="DRS" data-language-autonym="Lietuvių" data-language-local-name="Lithuanian" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Drag_Reduction_System" title="Drag Reduction System – Lombard" lang="lmo" hreflang="lmo" data-title="Drag Reduction System" data-language-autonym="Lombard" data-language-local-name="Lombard" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/DRS" title="DRS – Hungarian" lang="hu" hreflang="hu" data-title="DRS" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%90%D0%B3%D0%B0%D0%B0%D1%80%D1%8B%D0%BD_%D1%8D%D1%81%D1%8D%D1%80%D0%B3%D2%AF%D2%AF%D1%86%D0%BB%D0%B8%D0%B9%D0%B3_%D0%B1%D1%83%D1%83%D1%80%D1%83%D1%83%D0%BB%D0%B0%D1%85_%D1%81%D0%B8%D1%81%D1%82%D0%B5%D0%BC" title="Агаарын эсэргүүцлийг бууруулах систем – Mongolian" lang="mn" hreflang="mn" data-title="Агаарын эсэргүүцлийг бууруулах систем" data-language-autonym="Монгол" data-language-local-name="Mongolian" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Drag_reduction_system" title="Drag reduction system – Dutch" lang="nl" hreflang="nl" data-title="Drag reduction system" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%83%89%E3%83%A9%E3%83%83%E3%82%B0%E3%83%AA%E3%83%80%E3%82%AF%E3%82%B7%E3%83%A7%E3%83%B3%E3%82%B7%E3%82%B9%E3%83%86%E3%83%A0" title="ドラッグリダクションシステム – Japanese" lang="ja" hreflang="ja" data-title="ドラッグリダクションシステム" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Drag_Reduction_System" title="Drag Reduction System – Polish" lang="pl" hreflang="pl" data-title="Drag Reduction System" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Sistema_de_Redu%C3%A7%C3%A3o_de_Arrasto" title="Sistema de Redução de Arrasto – Portuguese" lang="pt" hreflang="pt" data-title="Sistema de Redução de Arrasto" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A0%D0%B5%D0%B3%D1%83%D0%BB%D0%B8%D1%80%D1%83%D0%B5%D0%BC%D0%BE%D0%B5_%D0%B7%D0%B0%D0%B4%D0%BD%D0%B5%D0%B5_%D0%B0%D0%BD%D1%82%D0%B8%D0%BA%D1%80%D1%8B%D0%BB%D0%BE" title="Регулируемое заднее антикрыло – Russian" lang="ru" hreflang="ru" data-title="Регулируемое заднее антикрыло" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Liikuteltava_takasiipi" title="Liikuteltava takasiipi – Finnish" lang="fi" hreflang="fi" data-title="Liikuteltava takasiipi" data-language-autonym="Suomi" data-language-local-name="Finnish" class="interlanguage-link-target"><span>Suomi</span></a></li><li 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System</a>)</span></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Driver adjustable bodywork</div> <p class="mw-empty-elt"> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:RB7_adjustable_rear_wing.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/9b/RB7_adjustable_rear_wing.jpg/170px-RB7_adjustable_rear_wing.jpg" decoding="async" width="170" height="216" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/9b/RB7_adjustable_rear_wing.jpg/255px-RB7_adjustable_rear_wing.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/9b/RB7_adjustable_rear_wing.jpg/340px-RB7_adjustable_rear_wing.jpg 2x" data-file-width="790" data-file-height="1002" /></a><figcaption>DRS in open (top) and closed (bottom) positions on a <a href="/wiki/Red_Bull_RB7" title="Red Bull RB7">Red Bull RB7</a> in 2011</figcaption></figure> <p>In <a href="/wiki/Motor_racing" class="mw-redirect" title="Motor racing">motor racing</a>, the <b>drag reduction system</b> (<b>DRS</b>) is a form of driver-adjustable <a href="/wiki/Coachwork" class="mw-redirect" title="Coachwork">bodywork</a> aimed at reducing <a href="/wiki/Aerodynamic_drag" class="mw-redirect" title="Aerodynamic drag">aerodynamic drag</a> in order to increase top speed and promote <a href="/wiki/Overtaking" title="Overtaking">overtaking</a>. It is an adjustable <a href="/wiki/Rear_wing" class="mw-redirect" title="Rear wing">rear wing</a> of the car, which moves in response to driver commands.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> DRS often comes with conditions, such as the requirement in <a href="/wiki/Formula_1" class="mw-redirect" title="Formula 1">Formula 1</a> that the pursuing car must be within one second (when both cars cross the detection point) for DRS to be activated. </p><p>DRS was introduced in Formula One in <a href="/wiki/2011_Formula_One_season" class="mw-redirect" title="2011 Formula One season">2011</a> and is planned to used until the <a href="/wiki/2025_Formula_One_World_Championship" title="2025 Formula One World Championship">2025 season</a>. The use of DRS is an exception to the rule banning any moving parts whose primary purpose is to affect the aerodynamics of the car. The system is also used in the <a href="/wiki/Formula_Renault_3.5" class="mw-redirect" title="Formula Renault 3.5">Formula Renault 3.5</a> from <a href="/wiki/2012_Formula_Renault_3.5_Series" title="2012 Formula Renault 3.5 Series">2012</a> until it folded in 2017,<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Deutsche_Tourenwagen_Masters" title="Deutsche Tourenwagen Masters">Deutsche Tourenwagen Masters</a> since <a href="/wiki/2013_Deutsche_Tourenwagen_Masters" title="2013 Deutsche Tourenwagen Masters">2013</a>,<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Super_Formula" class="mw-redirect" title="Super Formula">Super Formula</a> since <a href="/wiki/2014_Super_Formula_season" class="mw-redirect" title="2014 Super Formula season">2014</a>, <a href="/wiki/GP2_Series" title="GP2 Series">GP2 Series</a> later <a href="/wiki/FIA_Formula_2_Championship" title="FIA Formula 2 Championship">FIA Formula 2 Championship</a> since <a href="/wiki/2015_GP2_Series" title="2015 GP2 Series">2015</a>, <a href="/wiki/GP3_Series" title="GP3 Series">GP3 Series</a> later <a href="/wiki/FIA_Formula_3_Championship" title="FIA Formula 3 Championship">FIA Formula 3 Championship</a> since <a href="/wiki/2017_GP3_Series" title="2017 GP3 Series">2017</a>. An adjustable wing was also used by the Nissan <a href="/wiki/DeltaWing" title="DeltaWing">DeltaWing</a> at the <a href="/wiki/2012_24_Hours_of_Le_Mans" title="2012 24 Hours of Le Mans">2012 24 Hours of Le Mans</a>, although with free usage. </p><p>DRS is set to be removed in Formula One for the <a href="/wiki/2026_Formula_One_World_Championship" title="2026 Formula One World Championship">2026</a> season, as it will be replaced with an "active aerodynamics" system under the new 2026 regulations.<sup id="cite_ref-:0_4-0" class="reference"><a href="#cite_note-:0-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Rationale">Rationale</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Drag_reduction_system&action=edit&section=1" title="Edit section: Rationale"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In most higher-performance racing categories, the cars depend on the <a href="/wiki/Downforce" title="Downforce">downforce</a> produced by their aerodynamic bodywork to increase cornering speeds<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup>. However, the aerodynamic bodywork, particularly wings, has the side effect of producing <a href="/wiki/Turbulence" title="Turbulence">turbulence</a> in the region behind the vehicle<sup id="cite_ref-2022wing_6-0" class="reference"><a href="#cite_note-2022wing-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>. The following car's front wing will work less effectively in the turbulent airflow, meaning that the following car's cornering performance is compromised<sup id="cite_ref-2022wing_6-1" class="reference"><a href="#cite_note-2022wing-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>. </p><p>By contrast, in circuit racing categories where downforce is less of a factor (for example, <a href="/wiki/NASCAR" title="NASCAR">NASCAR</a>), the following car has an aerodynamic advantage, because of the aerodynamic drag reduction from <a href="/wiki/Drafting_(aerodynamics)" title="Drafting (aerodynamics)">drafting</a><sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> and little or no effect on cornering performance. </p><p>The net effect is to make overtaking much more difficult, and thus infrequent, in categories with high levels of downforce <sup id="cite_ref-2022wing_6-2" class="reference"><a href="#cite_note-2022wing-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>, making the sport less interesting to spectators. </p> <div class="mw-heading mw-heading2"><h2 id="Formula_One">Formula One</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Drag_reduction_system&action=edit&section=2" title="Edit section: Formula One"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In Formula One, the DRS opens an adjustable flap on the rear wing of the car, in order to reduce drag, thus giving a pursuing car an overtaking advantage over the car in front. The FIA estimate the speed increase to be between 10–12 km/h (6.2–7.5 mph) by the end of the activation zone,<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> while others, such as technical staff at racecar-engineering.com,<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> cite a much lower figure of 4–5 km/h (2.5–3.1 mph). When the DRS is deactivated or closed, it increases downforce, giving better cornering. </p><p>Between <a href="/wiki/2011_Formula_One_World_Championship" title="2011 Formula One World Championship">2011</a> and <a href="/wiki/2023_Formula_One_World_Championship" title="2023 Formula One World Championship">2023</a>, the device could only be used during a race after two racing laps had been completed, and when the pursuing car entered a designated "activation" zone defined by the FIA. This also included having to wait 2 laps after a safety car restart. In <a href="/wiki/2024_Formula_One_World_Championship" title="2024 Formula One World Championship">2024</a> the rule was changed and now the device can be used during a race after only one racing lap after the race start or a safety car restart has been completed.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </p><p>In <a href="/wiki/2011_Formula_One_World_Championship" title="2011 Formula One World Championship">2011</a>, the <a href="/wiki/FIA" class="mw-redirect" title="FIA">FIA</a> increased the number of DRS zones to two on some circuits featuring multiple long straights. In <a href="/wiki/Valencia_Street_Circuit" title="Valencia Street Circuit">Valencia</a> and in <a href="/wiki/Circuit_Gilles_Villeneuve" title="Circuit Gilles Villeneuve">Montreal</a>, two zones were endorsed on consecutive long straights, while in <a href="/wiki/Autodromo_Nazionale_Monza" class="mw-redirect" title="Autodromo Nazionale Monza">Monza</a> and in <a href="/wiki/Buddh_International_Circuit" title="Buddh International Circuit">Buddh</a>, two zones were created on separate parts of the circuit. Two zones had originally been planned for every race with multiple long straights from Montreal onwards (depending on Montreal/Valencia success), but this was not implemented.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> However, at the penultimate round of the 2011 season, two zones on consecutive long straights saw a return at <a href="/wiki/Yas_Marina_Circuit" title="Yas Marina Circuit">Yas Marina</a>. </p><p>When usage of the DRS remained legal for the <a href="/wiki/2012_Formula_One_World_Championship" title="2012 Formula One World Championship">2012</a> season, a second zone was added to the opening round's track in <a href="/wiki/Melbourne_Grand_Prix_Circuit" class="mw-redirect" title="Melbourne Grand Prix Circuit">Melbourne</a>. A third DRS zone was added during <a href="/wiki/2018_Formula_One_World_Championship" title="2018 Formula One World Championship">2018</a> and <a href="/wiki/2019_Formula_One_World_Championship" title="2019 Formula One World Championship">2019</a> seasons in Australia, Bahrain, Canada, Austria, Singapore, and Mexico. In the <a href="/wiki/2022_Formula_One_World_Championship" title="2022 Formula One World Championship">2022</a> season, a fourth zone was initially added for the track in Melbourne, after the circuit redevelopment, before being removed for safety reasons.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> In the <a href="/wiki/2023_Formula_One_World_Championship" title="2023 Formula One World Championship">2023</a> season the zone was re-added.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> Bahrain, Jeddah, Melbourne, Baku and Miami had their DRS zones adjusted based on whether the FIA deemed DRS made overtaking at these five circuits too easy or too hard in 2022.<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> A fourth DRS zone was added in Singapore in <a href="/wiki/2024_Formula_One_World_Championship" title="2024 Formula One World Championship">2024</a>.<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> </p><p>DRS is set to be made obsolete in the <a href="/wiki/2026_Formula_One_World_Championship" title="2026 Formula One World Championship">2026</a> season, being replaced with an "active aerodynamics" system.<sup id="cite_ref-:0_4-1" class="reference"><a href="#cite_note-:0-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Functional_description">Functional description</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Drag_reduction_system&action=edit&section=3" title="Edit section: Functional description"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The horizontal elements of the rear wing consist of the main plane and the flap. The DRS allows the flap to lift a maximum of 85 millimetres (3.3 in) from the fixed main plane. This reduces drag from the wing and results in less downforce. In a straight line, where downforce isn't needed, it allows for faster acceleration and potential top speed, unless limited by the mechanical limits of the engine and transmission. <a href="/wiki/Sam_Michael" title="Sam Michael">Sam Michael</a>, <a href="/wiki/Sporting_director" title="Sporting director">sporting director</a> of the <a href="/wiki/McLaren" title="McLaren">McLaren</a> team, believes that DRS in qualifying will be worth about half a second per lap. </p><p>The effectiveness of the DRS will vary from track to track and, to a lesser extent, from car to car. The system's effectiveness was reviewed in 2011 to see if overtaking could be made easier, but not to the extent that driver skill is sidelined. The effectiveness of DRS seems likely to be determined by the level of downforce at a given circuit (where the cars are in low drag trim at circuits like Monza, the effects may be smaller), length of the activation zone, and characteristics of the track immediately after the DRS zone. </p> <div class="mw-heading mw-heading3"><h3 id="Rules_on_use">Rules on use</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Drag_reduction_system&action=edit&section=4" title="Edit section: Rules on use"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Sepang_drs.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Sepang_drs.png/220px-Sepang_drs.png" decoding="async" width="220" height="182" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Sepang_drs.png/330px-Sepang_drs.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Sepang_drs.png/440px-Sepang_drs.png 2x" data-file-width="1146" data-file-height="946" /></a><figcaption>DRS zones on the <a href="/wiki/Sepang_International_Circuit" title="Sepang International Circuit">Sepang International Circuit</a> in 2011. 1: DRS detection point. 2: DRS activation point. 3: approximate DRS deactivation point (braking zone before Turn 1)</figcaption></figure> <p>Use of DRS is restricted by the F1 rules; it is permitted only when both: </p> <ul><li>The following car is within one second of the car to be overtaken, which may be a car being lapped. The FIA may alter this parameter, race by race.</li> <li>The following car is in an overtaking zone as defined by the FIA before the race (commonly known as the DRS zone).</li></ul> <p>Further: </p> <ul><li>The system may not be activated until the end of one lap (from <a href="/wiki/2024_Formula_One_World_Championship" title="2024 Formula One World Championship">2024</a>) after the race start, restart, or a safety car deployment, for example, as was the case of the <a href="/wiki/2021_Belgian_Grand_Prix" title="2021 Belgian Grand Prix">2021 Belgian Grand Prix</a>, during which no driver could have activated DRS because the entire race took place behind a safety car, before being terminated due to bad weather.</li> <li>The system cannot be used by the defending driver, unless within one second of another car in front.</li> <li>The system may not be enabled if racing conditions are deemed dangerous by the race director, such as rain, as was the case at the <a href="/wiki/2011_Canadian_Grand_Prix" title="2011 Canadian Grand Prix">2011 Canadian Grand Prix</a>.</li></ul> <p>A dashboard light notifies the driver when the system is enabled (the driver can also see the system deploy in his wing mirrors). The system is deactivated when the driver releases the button or uses the brakes. </p><p>There are lines on the track to show the area where the one-second proximity is being detected (the detection point) and a line later on the track (the activation point), along with a sign vertically marked "DRS" where the DRS zone itself begins. </p> <div class="mw-heading mw-heading2"><h2 id="Reception">Reception</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Drag_reduction_system&action=edit&section=5" title="Edit section: Reception"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>There has been a mixed reaction to the introduction of DRS in Formula One amongst both fans and drivers. Some believe that this is the solution to the lack of overtaking in F1 in recent years while others believe this has made overtaking too easy.<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> Former Formula One and <a href="/wiki/Team_Penske" title="Team Penske">Team Penske</a> <a href="/wiki/IndyCar_Series" title="IndyCar Series">IndyCar Series</a> driver <a href="/wiki/Juan_Pablo_Montoya" title="Juan Pablo Montoya">Juan Pablo Montoya</a> described it as "like giving <a href="/wiki/Pablo_Picasso" title="Pablo Picasso">Picasso</a> <a href="/wiki/Adobe_Photoshop" title="Adobe Photoshop">Photoshop</a>".<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> The principal argument for the opponents of DRS is that the driver in front does not have an equal chance of defending his position because they are not allowed to deploy DRS to defend. The tightening up on the rules for a leading driver defending their position has added to this controversy.<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> In 2018, then-<a href="/wiki/Scuderia_Ferrari" title="Scuderia Ferrari">Scuderia Ferrari</a> driver <a href="/wiki/Sebastian_Vettel" title="Sebastian Vettel">Sebastian Vettel</a> stated that he preferred throwing bananas <i><a href="/wiki/Mario_Kart" title="Mario Kart">Mario Kart</a></i>-style over the use of DRS,<sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> arguing that it's "artificial".<sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Road_car_use">Road car use</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Drag_reduction_system&action=edit&section=6" title="Edit section: Road car use"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <a href="/wiki/McLaren_P1" title="McLaren P1">McLaren P1</a> coupé is the first road car to have incorporated the F1-style rear wing Drag Reduction Systems.<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> <a href="/wiki/McLaren_Senna#McLaren_Senna_GTR" title="McLaren Senna">McLaren Senna GTR</a> and <a href="/wiki/Porsche_911_GT3#992_GT3_RS" title="Porsche 911 GT3">Porsche 911 (992) GT3 RS</a> later followed suit by the introduction of the same system in 2019 and 2022 respectively.<sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Drag_reduction_system&action=edit&section=7" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1266661725">.mw-parser-output .portalbox{padding:0;margin:0.5em 0;display:table;box-sizing:border-box;max-width:175px;list-style:none}.mw-parser-output .portalborder{border:1px solid var(--border-color-base,#a2a9b1);padding:0.1em;background:var(--background-color-neutral-subtle,#f8f9fa)}.mw-parser-output .portalbox-entry{display:table-row;font-size:85%;line-height:110%;height:1.9em;font-style:italic;font-weight:bold}.mw-parser-output .portalbox-image{display:table-cell;padding:0.2em;vertical-align:middle;text-align:center}.mw-parser-output .portalbox-link{display:table-cell;padding:0.2em 0.2em 0.2em 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Retrieved <span class="nowrap">17 September</span> 2024</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Pirelli.com&rft.atitle=A+new+fourth+DRS+zone+in+Singapore&rft.date=2024-09-17&rft_id=https%3A%2F%2Fpress.pirelli.com%2Fa-new-fourth-drs-zone-in-singapore%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ADrag+reduction+system" class="Z3988"></span></span> </li> <li id="cite_note-17"><span class="mw-cite-backlink"><b><a href="#cite_ref-17">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation news cs1"><a rel="nofollow" class="external text" href="http://news.bbc.co.uk/sport1/hi/formula_one/13328467.stm">"BBC Sport - Is DRS making overtaking too easy?"</a>. <i>BBC Sport</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=BBC+Sport&rft.atitle=BBC+Sport+-+Is+DRS+making+overtaking+too+easy%3F&rft_id=http%3A%2F%2Fnews.bbc.co.uk%2Fsport1%2Fhi%2Fformula_one%2F13328467.stm&rfr_id=info%3Asid%2Fen.wikipedia.org%3ADrag+reduction+system" class="Z3988"></span></span> </li> <li id="cite_note-18"><span class="mw-cite-backlink"><b><a href="#cite_ref-18">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.autosport.com/news/report.php/id/113650">Juan Pablo Montoya reckons DRS has made Formula 1 less challenging</a> – Autosport, 26 April 2014</span> </li> <li id="cite_note-19"><span class="mw-cite-backlink"><b><a href="#cite_ref-19">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://argent.fia.com/web/fia-public.nsf/2E91C936598568EEC1257870003A2BAC/$FILE/1-2011%20SPORTING%20REGULATIONS%2008-03-2011.pdf">"F1 2011 Sporting Regulations"</a></span> </li> <li id="cite_note-20"><span class="mw-cite-backlink"><b><a href="#cite_ref-20">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://www.topgear.com/car-news/formula-one/vettel-throwing-bananas-cockpit-more-fun-drs">Vettel: ‘throwing bananas’ from cockpit ‘more fun’ than DRS</a></span> </li> <li id="cite_note-21"><span class="mw-cite-backlink"><b><a href="#cite_ref-21">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLloyd2023" class="citation web cs1">Lloyd, Harrison (8 August 2023). <a rel="nofollow" class="external text" href="https://formuladriven.com/2023/08/08/drs-in-formula-1-how-why-and-when-is-it-used/">"DRS In Formula 1: How, Why, And When Is It Used?"</a>. <i>Formula Driven</i><span class="reference-accessdate">. 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