# Radical SR4 > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Radical_SR4 > Markdown URL: https://mediated.wiki/source/Radical_SR4.md > Source: https://en.wikipedia.org/wiki/Radical_SR4 > Source revision: 1324880716 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) {{Infobox car | name = Radical SR4 | image = Autosport International The Racing Car Show NEC Birmingham 2011 DSC 3458 (5377786222).jpg | manufacturer = [Radical Sportscars](/source/Radical_Sportscars) | production = 2004-2016
46 produced | assembly = [Peterborough](/source/Peterborough), [England](/source/England) | designer = [Mike Pilbeam](/source/Mike_Pilbeam) | class = [Sports Car](/source/Sports_Car) | body_style = [Roadster](/source/Roadster_(car)) | layout = [Longitudinally mounted](/source/Longitudinal_engine) [Mid Engine, RWD](/source/Rear_mid-engine%2C_rear-wheel-drive_layout) | engine = [See below](/source/Radical_SR4) | transmission = 6-speed [Sequential](/source/Sequential_manual_transmission) and [Manual](/source/Manual_transmission) | length = {{convert|3760|mm}} | width = {{convert|1630|mm}} | height = {{convert|1000|mm}} | wheelbase = {{convert|2370|mm}} | sp = uk | predecessor = [Radical Clubsport](/source/Radical_Clubsport) | related = [Radical SR3](/source/Radical_SR3) }} The '''Radical SR4''' is the sixth car produced by [Radical](/source/Radical_Sportscars). == History == The SR4 was originally intended as a smaller sibling to the [SR3](/source/Radical_SR3), however the car was significantly less popular then that of the SR3, with only 46 of the SR4 being made until the production was halted in 2016.{{Cite web |title=Radical SR4 Registry |url=https://radicalsportscarregistry.com/sr4-registry/ |access-date=2025-01-20 |website=Radical Sportscar Registry |language=en-US}}{{Cite news |date=2018-07-14 |title=This 2005 Radical SR4 Should Quench Your Thirst For Speed {{!}} Carscoops |url=https://www.carscoops.com/2018/07/2005-radical-sr4-quench-thirst-speed/ |archive-url=https://web.archive.org/web/20190706031158/https://www.carscoops.com/2018/07/2005-radical-sr4-quench-thirst-speed/ |archive-date=2019-07-06 |access-date=2025-01-20 |work=Carscoops |language=en-US |url-status=live }} == Specifications == The SR4 would have largely similar motors to its larger siblings, with one notable exception; the {{Convert|998|cc|cuin L|abbr=on}} [Honda CBR1000RR](/source/Honda_CBR1000RR) motor, which was one of the unique options to the SR4, with only 7 being produced with this engine, and only 2 retaining this engine as of December 2024.{{Cite web |date=2024-10-28 |title=Radical SR4 Clubsport |url=https://racecarsdirect.com/Advert/Details/149844/radical-sr4-clubsport |access-date=2025-01-20 |website=racecarsdirect.com |language=en}} The other unique engine option was that of the {{Convert|1164|cc|cuin L|abbr=on}} [Kawasaki ZZ-R1200](/source/Kawasaki_ZZ-R1200), which was the first engine fitted to the car, but no car built with this engine is still fitted with it as of December of 2024. The 1200 will do 0-{{Convert|100|km/h|mph|abbr=on}} in 3.7s, the quarter mile in 12.4s and has a top speed of {{Convert|234|km/h|mph|abbr=on}}. == Engines == {| class="wikitable sortable" |+ !Name !Displacement !Engine !Horsepower !Torque !Weight |- |SR4 1000 |{{Convert|998|cc|cuin L|abbr=on}} |[I4](/source/Straight-four_engine) ([Honda CBR1000RR](/source/Honda_CBR1000RR)) |{{Convert|172|bhp|PS kW|abbr=on}} @ 11,000 rpm |{{Convert|104|N.m|lb.ft|abbr=on}} @ 8,500 |{{Convert|530|kg|lb|abbr=on}} |- |SR4 1200{{Cite web |title=Radical SR4 1.2 specs, quarter mile, lap times, performance data |url=https://fastestlaps.com/models/radical-sr4-1-2 |access-date=2025-01-20 |website=FastestLaps.com |language=en-US}} |{{Convert|1164|cc|cuin L|abbr=on}} |[I4](/source/Straight-four_engine) ([Kawasaki ZZ-R1200](/source/Kawasaki_ZZ-R1200)) |{{Convert|186|bhp|PS kW|abbr=on}} @ 9,800 rpm |{{Convert|125|N.m|lb.ft|abbr=on}} @ 6,500 |{{Convert|530|kg|lb|abbr=on}} |- |SR4 1300 SR4 CS{{Cite web |last=Garlitos |first=Kirby |date=2011-01-03 |title=2005 Radical SR4 CS |url=https://www.topspeed.com/cars/radical-sportscars/2005-radical-sr4-cs/ |access-date=2025-01-20 |website=TopSpeed |language=en}} |{{Convert|1300|cc|cuin L|abbr=on}} |[I4](/source/Straight-four_engine) ([Powertech-Suzuki](/source/Suzuki_GSX-R1000) [Turbocharged)](/source/Turbocharger) |{{Convert|250|PS|bhp kW|abbr=on}} |{{Convert|175|N.m|lb.ft|abbr=on}} |{{Convert|500|kg|lb|abbr=on}} |- |SR4 1340 |{{Convert|1340|cc|cuin L|abbr=on}} |[I4](/source/Straight-four_engine) ([Suzuki Hayabusa](/source/Suzuki_Hayabusa)) |{{Convert|202|bhp|PS kW|abbr=on}} |{{Convert|169|N.m|lb.ft|abbr=on}} |{{Convert|430|kg|lb|abbr=on}} |- |SR4 1500 |{{Convert|1489|cc|cuin L|abbr=on}} |[I4](/source/Straight-four_engine) (Powertech-[Suzuki](/source/Suzuki_Hayabusa)) |{{Convert|252|bhp|PS kW|abbr=on}} |{{Convert|176|N.m|lb.ft|abbr=on}} |{{Convert|445|kg|lb|abbr=on}} |- |SR4 1585 |{{Convert|1567|cc|cuin L|abbr=on}} |[I4](/source/Straight-four_engine) (Powertech-[Suzuki](/source/Suzuki_Hayabusa)) |{{Convert|333|bhp|PS kW|abbr=on}} |{{Convert|300|N.m|lb.ft|abbr=on}} |{{Convert|500|kg|lb|abbr=on}} |} ==References== {{reflist}} SR4 Category:Rear mid-engine, rear-wheel-drive vehicles Category:Cars of England Category:Sports cars Category:Cars introduced in 2004 Category:Cars discontinued in 2016 Category:2000s cars Category:2010s cars --- Adapted from the Wikipedia article [Radical SR4](https://en.wikipedia.org/wiki/Radical_SR4) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Radical_SR4?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.