Colin McRae Rally 04 is a racing simulation game released for Xbox, representing the fourth installment in the Colin McRae Rally series. The game features four car classes: 4WD, 2WD, Group B, and a Bonus class of non-traditional rally cars. Unlike its predecessors, it lacks an official WRC team license, utilizing fictitious car liveries. Derek Ringer voices the co-driver, guiding players through six championship events.
There are 4 classes of cars: 4WD, 2WD, Group B and Bonus. The bonus class are cars that are not usually raced in rallies.
This fourth incarnation of the Colin McRae Rally series, unlike in the previous three games, has no official WRC team license. All of the cars' liveries are either fictitious or taken from championships other than the WRC.
Nicky Grist is replaced by Derek Ringer as the co-driver voice in the game. There are six championships to complete in the game.