Nismo, the motorsport arm of Nissan, entered the Nissan GT-R in the Super GT race series in the GT500 class for the 2008 season, replacing the Nissan 350Z.
Unlike the production car, the GT500 version has a completely different drivetrain. The race car has a 4.5 litre naturally-aspirated V8 with 6 speed sequential manual gearbox and a RWD layout from its predecessor, the 350Z race car.
In 2004, the 350Z replaced the Skyline GT-R as the car for Nismo Xanavi and Motul Pitwork teams in the Super GT's GT 500 class. The cars used were heavily modified and featured a longer nose and tail (requiring the production of the Type-E homologation special), carbon fiber bodywork, and a tube chassis. Nismo eventually won the GT500 championship. The 350Z was soon replaced by the new Skyline GT-R (R35) in 2008.
Here are two of my 350Z GT 500 cars by Tomica Limited: