Unlockable Cars:Unlock the following cars by beating the corresponding races:Colin McRae R4 – Beat the X-Games EuropeDallenbach Special – Beat the Trailblazer World TourFord Escort MKII – Beat all X-Games eventsFord RS200 Evolution – Beat the Rally Cross World TourMG Metro 6R4 – Beat all of the X-Games eventsMitsubishi Lancer Evolution X – Beat the X- Games AsiaMitsubishi Pajero Dakar 1993 – Beat the Raid World TourSubaru Impreza WRX STi – Beat the X-Games America1995 Subaru Impreza WRX STi – Beat the Colin McRae ChallengeToyota Stadium Truck – Beat the Landrush World TourSubaru Impreza STi Group N:To unlock the Subaru Impreza STi Group N – No Fear (Gold), have a saved game file from the original DiRT on the Xbox 360