the name is telling everything...
there are many cars (everyone may choose his car)
like:
parker, monster truck, racer, fbi truck, buldozer, and other eavy and fdast vehicles.
and there may be many types of games like:
1. blow frenzy - destroy as many cars as you can
2. survival - remain alive
3. goup vs group - destroy all the others group cars
4. hunting - 1 player is running for his life and all the others hunt him
5. role playing - thats some harder thing...
there are 2 teams the players arent allowed to leave the arena by themselves.
there need to be parkers which may collect half broken cars and drive them to pay and spray and get them back fixed.
they can get it to the mod garages too
but the main idea is like in "group vs group"