Defending Rolex 24 GT winners Sylvain Tremblay, Nick Ham and David Haskell will return in the #70 SpeedSource Castrol Syntec Mazda RX-8, and expect to be joined by the similar cars of SpeedSource FXDD, Hyper Sport - with actor/driver Patrick Dempsey among the pilots - Racer's Edge, running rising star Dane Cameron, and series newcomers Yellow Dragon Motorsports.

TRG will bring back the #67 Porsche GT3 of Tim George Jr. and the #66 Porsche GT3 of former Rolex 24 class winner Spencer Pumpelly. John Potter is listed to drive a third TRG entry, while other Porsches are expected in the shape of two cars from Farnbacher Loles Racing, the #64 JLowe Racing entry, Autometrics Motorsports, Wright Motorsports and GTS Racing.

On top of that, Jamie Holtom, the 2008 KONI Challenge Series Street Tuner champion, will join Eric Curran in the #00 Georgian Bay Motorsports Corvette, while Ian James and Tom Nastasi will co-drive the #15 Blackforest Motorsports Ford Mustang.