Driving on a well cleared interstate in light snow conditions, the rear of the vehicle sways back and forth like there is no traction while the front end has traction and tries to maintain traction. once stabilized and only driving 20-25mph when going over a bridge or under and overpass, the little bit of moisture in those areas makes the rear of the car slide side to side. driving over expansion joints in the highway makes the rear of the vehicle jump to the right. driving is stabilized on completely dry roads or in town snowpacked but treated roads. the vehicle is unsafe to drive on interstates in even the mildest of any type of adverse weather. the car cannot be driven over 25 mph without out the rear end swaying back and forth. during this situation all other vehicles were driving at or near posted highway speeds without problem. *tr