The new SR1 XXR is eligible to race in 12 different Radical series worldwide, including its own SR1 Cup championship in the UK. Like previous SR1 generations, the XXR is powered by a 1.3-litre ...

How fast you want to go depends how much you want to spend. A basic SR1 XXR will run you about $70,000 depending on options, while the fastest RXC coupe is a couple hundred grand. With a limited ...