i have a friend at my LHS that i hang out and bash with, and he only drives traxxas cars. he has a nitro 4-tec, a t-maxx, a nitro rustler, an electric rustler, and 2 revo's. he is lucky... he uses one revo specifically for racing on a maintained track and that thing is insane, he has got a good amount of money into that one. and his other revo is his bashing revo. he keeps it plain stock. nothing special. but he beats the crap out of it. he backflips it over cars and jumps it onto the house roof sometimes. considering how hard he bashes it it is very tough. he breaks a part every once in a while but that is only if he goes off the ramp and just misses the roof of the house and runs into the house wall at full speed in the air. poor wall.