yea those minis are. fg modelsport has a 4wd medium wheelbase (510mm) belt driven car they offer with a mini body.
4wd 1/5 scale is kinda boring to me after driving 2wd. with a 2wd you have to drive so smoothly, the 4wd you can just pound with no precision at all (kinda like a 1/10 scale) and it will go around the track, albiet not the fastest. i did a half a dozen laps with a guys 4wd car and told him i was bored and gave him the radio back.