Radical SR8

{{Infobox automobile

| image = Radical_SR8.jpg

| name = Radical SR8

| manufacturer = Radical Sportscars

| production = 2005-

| assembly = Peterborough, United Kingdom

| predecessor = Radical SR3

| successor = Radical SR10

| class = Sports car

| layout = longitudinal mounted mid-engine, rear-wheel drive

| body_style = Roadster

| transmission = Powertec P-Tec 6-speed sequential manual{{cite web|url=http://www.radicalsportscars.com/uk/showroom/radical-sr8-rx.aspx|title=Showroom - Radical SR8 RX|accessdate=2013-10-14|work=Radical Sportscars|url-status=dead|archiveurl=https://web.archive.org/web/20131016063343/http://www.radicalsportscars.com/uk/showroom/radical-sr8-rx.aspx|archivedate=2013-10-16}}

| weight =

| wheelbase = {{cvt|2527|mm|in|1}}

| length = {{cvt|4100|mm|in|1}}

| width = {{cvt|1790|mm|in|1}}

| height = {{cvt|1040|mm|in|1}}

| designer = Nick Walford

}}

The Radical SR8 is a British sports car made by Radical Sportscars.

Dominic Dobson drove one to victory in the 2015 Pikes Peak International Hill Climb.

Michael Vergers held the all-time street legal lap record of the Nordschleife circuit on the Nürburgring until 29 June 2010,{{cite magazine |url= https://www.evo.co.uk/pagani/zonda/11205/pagani-zonda-breaks-ring-record/ |title= Pagani Zonda breaks 'Ring record |magazine= Evo |date= 13 November 2018 |access-date=2024-05-13}} doing so in 2009 in a Radical SR8 LM on Dunlop Direzza DZ03 tyres. He clocked a lap time of 6:48:28.

A prototype is being made, with the help of Radical Sportscars, into an all-electric version by Racing Green Endurance, a student-led project of Imperial College London.