From wheel-to-wheel racing, time attack, and street car lapping, the IMR Challenge Series offers something for every motorsport enthusiast. Wheel-to-wheel racing is open to all Vintage, SCCA, NASA, and IMSA certified race cars and drivers. Not licensed? IMR provides a 2-day competition racing school to obtain an IMRCS license. Our all-inclusive member series typically runs from September through April each season. Don’t miss your chance to be on the podium and accelerate through the finish line.