RE: Does anyone remember RS Viper (1:43)
You may want to look for a tyco racin ratz stunt truck.I just bought two($19.99 each) yesterday one has the gravedigger body and the other has wolverine.The trucks wheelbase is 3-1/4" and the tires while lame looking are about the same diameter as the tamiya mini monster tires(slightly smaller).
It comes with a ramp to run over and the truck could push it around from the side on a painted concrete floor or if the ramp go stuck the truck would atleast spin the tires.The truck still starts off slow but it seems to work good overall.
I wonder what motor will fit in it.With the bigger tires they had to change the gearing in it.
I really want to do a project on this but may start off by just putting my RS viper controls in it.