Old subaru sportswagon thingys from the 80's are pretty fun on the slippery stuff. Cut a mean donut.
I've had a buttload of bashers, including several vans chopped into utes (worst weight balance ever). The best was possibly a RT104 corona - tractor engine is hard to kill.
Commodores sucked, too big and heavy = too many spin-outs on grass. The lighter cars were always more fun - more agile when there's little traction.