Complete the indicated event to unlock the corresponding car.

Car	How to unlock
Colin McRae Challenge	1995 Subaru Impreza WRX STi with chrome Colin McRae livery.
X-Games: All completed	Ford Escort MKII and MG Metro 6R4.
X-Games: Asia	Mitsubishi Lancer Evolution with X-Games livery.
X-Games: Europe	Colin McRae R4 with X-Games livery.
X-Games: North America	Subaru Impreza WRX STi with X-Games livery.
World Tour: Landrush	Toyota Stadium Truck.
World Tour: Raid	Mitsubishi Pajero Dakar 1993.
World Tour: Rally Cross	Ford RS200 Evolution.
World Tour: Trailblazer	Dallenbach Special.

Have a saved game file from the original DiRT to unlock the Subaru Impreza STi Group N - No Fear (Gold).
Have a saved game file from Grid to unlock the Subaru Impreza STi Group N with Ravenwest livery.