GT3 cars, known in-game as Forza GT3, are heavily modified track-only racers with a weight limit and strong downforce effect and rear-wheel drive.

GT3 was designed to be much simpler and easier to drive than the GT1 and GT2 classes, so that amateurs and younger drivers could work their way up into higher levels of GT racing. This class is present in most regional racing series all over the globe.

Compete in the biweekly Forza GT3 Series in Featured Multiplayer! You can also set your fastest lap times in the Forza GT3 Spec Division Rivals.