D Sports Racing

It has been called the one racing category that remains unfettered by regulations that have throttled innovation elsewhere in motorsport.

DSR evolved from the SCCA's older H Modified class, which traces its roots back to the early 1950s.

Today's DSR cars normally use a 1000cc four cylinder engine sourced from a Japanese motorcycle.

[2] DSR's generally weigh under 1000 lbs with the driver and make 200 bhp at 13,000rpm.

The relatively low cost of the engines and some new chassis manufacturers led to an explosion in growth of the class between the years 2000 and 2008.