Me and my family have been playing "Battle Bits" for a while. Same basic idea, try and knock your opponents off of a table. We run up to 4 at a time, and everyone puts some money down. Last one still on the table wins all the dough. Sometimes a car will fly off the table while pushing someone else off, in that case - the money rolls over to the next round. Bodies may be modified in any way, chassis must remain stock (except for motor and gears, which may be adjusted). Absolutely no "Wild Char-G" allowed, BCG and clones only! I run a KIT 2.6 motor and 12:1 gearing for torque.
My brother wants to fire up a Dremel with a cut-off wheel on it as one of the "hazards" of the arena. This could get expensive......