Seven Mazda RX-8 teams are entered in the Rolex 24 for the GT class. Each RX-8 is powered by a 500hp three-rotor Mazda rotary engine.
#30 The Racers Edge RX-8 featuring 2009 MX-5 Cup Champion Todd Lamb and 2009 Atlantic Champion John Edwards
#40 The Dempsey Racing RX-8 featuring America's fastest actor, Patrick Dempsey.
#41 The second Dempsey Racing RX-8 will be run in conjunction with Team Seattle as a charity fundraiser for a children's hospital.
#42/43 A pair of Team Sahlen RX-8s. No strangers to Mazda, the Nonnamaker Brothers will be a factor all season long. This is their race debut in an RX-8 in Grand-Am GT competition.
#69 The SpeedSource FXDD RX-8. This team won two races in 2009.
#70 The SpeedSource Castrol Syntec RX-8. The Sylvain Tremblay-led team is looking to repeat their 2008 Rolex win. Joining the team fulltime for 2010 is Jonathan Bomarito. Jonathan is a former Mazda Atlantic Championship Star.