my ra does this too. from what i can gather it depends on the 4wd split. the classics have a 60/40 split with 60 going to the back this coupled with new goodyear eagles tyres makes mine a bit twitchy at the rear. been told a set of winter tyres would make a hell of a differance. plus my power to weight does not help in the ra at 340 brake in a car that weights 1100kg