Car racing game, bird view (not always but mostly), cars could pick up weapons (like machine guns, rocket launchers, mortar ect.), all cars teams had different colours, I remember some chalanges in campain like helicopter - boss fight, first map - desert like map with only one optional jump over giant hole in road, other maps - ice map (very basic - 2 straight parts with 2 U-turns), night map with rain (helicopter fight was on that map), jungle map (I remember it being quite complicated).
Every map had its own vehicles type. Cant remember much more. Pls help. That game was awesome.