Radical SR4 chassis number 2 was originally built for Radical Co-Founder Mick Hyde. It is currently a silver car (may be wrapped) with a Dry sump Kawasaki ZZRR1200cc engine with flat slide carburetors. The car was used as a rental car
Radical SR4 chassis number 9 is a blue car that was originally equipped with a ZZR1200 engine. In 2019 Doug Knox purchased the car with a blown engine and is converting the car to use a 2014 CBR1000RR Fire blade engine. In June 2020 the car was located in the UK. In April 2020 the car was located in the UK and is with a new owner and has been painted black.
Radical SR4 chassis number 36 is a red car with a 1547cc Suzuki fuel injected / dry sump engine (rebuilt spring 2018), Intrax triple adjustable dampers. The car was originally owned by Mike McGinley from Kansas who won two Midwest Division CSR Championships and finished 6th at the 2006 SCCA Runoffs. At that time the car was red with silver graphics. He sold the car in late 2009. The car was sold again in July 2018 on Bring a trailer. At that time the car was red with black graphics and was located in Vacaville, CA
Radical SR4 chassis number 45 is a blue car with a 1500cc engine. It has a rear diffuser and the optional Intrax triple adjustable dampers and Stack dash. In November 2020 the car was located at Team Stradale near Chicago.
Radical SR4 chassis number 46 is the first SR4 built in the 2006 model year.
Black car with orange graphics, 1500cc engine with 0 hours, air jacks, carbon Le Mans mirrors, Brake pressure sensors, F&R floating rotor upgrade, Intrax 1 way dampers, Clear rear lights, 24v strating system, Reversing differential, Fuel drain out kit. Car is located in Weston-Super-Mare England
Radical Sportscar Marketplace
No SR4s were built for the 2013 model year
Radical Sportscar Registry
Radical SR4 chassis number 91 is the first SR4 built in the 2014 model year.