An endless road with no gas pedal and no brake, where you only steer and your crew does the fighting from the windows.
Raiders in faster cars come at you in waves and try to ram you off the road. Most roads have checkpoints, and what you pick up is only yours once you bank it at one. Past the last one the road keeps going and the raiders keep getting faster, until you wreck or quit.
Every seat in your car holds a crew member with a gun and a power of their own. Each car can only carry so much weight in guns, and the driver's seat only takes a handgun or an SMG.
A sports car pulls away fast and a van is slow, because each car handles by its weight and power.
Snow Mountain and the Plateau both get sun, rain and storms. Rain makes the road slippery, and the game warns you when it does.
Captured in game, HUD and all.