Saturn is correct if you are referring to the carts. If you are referring to the actual racecars, visit Radical Sportscars - Ten Years On - 1997-2007. They are based in the UK with a distributor as close as Jupiter, Florida. The "starter" SR3 model is powered by a Suzuki 1500cc engine that revs to over 10,000 rpm, other models include the SR5 that is powered by Honda v-tech, an SR9 full spec LMP 2 car and new this year they are offering the SR10 that is a full spec LMP1 car.


And in case you are wonder about cost, there was a used, full carbon fibre bodied SR3 car (only few exist because it is a 5-7000 dollar option) for sale at Sebring last weekend for $70,000.