first time my mom goes on the highway in my benz in years. we are going back and the car started to scare my mom alot....we are in the right lane and the car moves by itself in the median and im flipping out because theres a truck coming. it would just keep on moving by it self. i get home alright, very nervous cant tell if my mom cant drive or is it the car. she says the alignment needs redone and the steering wheel has play in it. so theres about 3 inches of play in the wheel. and im not sure if thats the problem or its in need of an aligmnent? Thanks for reading. this day was pretty scary, for me and the benz. wouldnt want to lose her in a second.