The BMW M3 GTR '03 is a Road car produced by BMW. It appears in Gran Turismo 4, Gran Turismo PSP, Gran Turismo 5, and Gran Turismo 6.
In-game description
This description is taken from the description page in GT5. It is transcluded from here.
In 1998, the all-new BMW 3 Series, codenamed the E46, was introduced. Two years later, in 2000, a new BMW M3 arrived built on the E46 platform. The M3 was powered by a newly developed 3.2-liter DOHC inline-6 that produced 338 HP. This M3 was quickly transformed into a race car, just in time to contest in the first round of the American Le Mans Series (ALMS).
BMW's race team, Team PTG, made many improvements to the vehicle throughout the season. Power was significantly increased, and the car's aerodynamics were dramatically improved. But this was nothing compared to a purpose-built M3 race machine to come. This model arrived in February 2002 as the M3 GTR.
The big buzz surrounding the GTR centered around its engine. All previous M3 models came powered by an inline-6, but the M3 GTR sported a completely new 3997-cc V-8. The street version of the new V-8 produced 375 HP, while the race car's power was increased to 444 HP. The bumpers and spoilers were bigger than those of a normal M3 and made of carbon fiber. The hood was raised and a vent added to help cool the engine. This monster vehicle was completely different from a normal M3, and its AC Schnitzer-tuned powerplant helped make it a champion on numerous occasions in the ALMS.
Acquisition
GT6
This car can be purchased for 341,020 Credits. It is a simplified car.
GT5
As a Standard car, the BMW M3 GTR '03 can be purchased from the Used Car Dealership for anywhere from 290,000-320,000 Credits. It is a Level 9 car.
GTPSP
This car can be purchased for 341,020 Credits.
GT4
This car can only be obtained by winning Club 'M'. It's not for sale in the BMW dealership.