1st Gen FTW - It's AutoMedic!
Join Date: Jun 2008
Location: Garrison, ND
You need the better traction in the rear so that the back of the car stays behind you. I doubt it is LAW, but yes, I bet the insurance companies are requiring it.
Doesn't matter the car or the driving style, of the road is slick enough, in a curve, if the tries on the back are bald, the car will try to over steer (back come around to meet you). You put the traction in the rear, and you are less likely to spin out.