BAJA Edge of Control
50 Achievements
1,000
40-50h
Xbox 360
4X4 Class Experience Level
Earn enough experience points to unlock the 4X4 Class race leagues.
15
How to unlock the 4X4 Class Experience Level achievement in BAJA Edge of Control - Definitive Guide
rather simple. Keep racing in the carear mode untill you get enouth exp points, if i remember correctly you don't have to do every race/event in the class, to get enough exp pointsto unlock the next 1