I had a 1993 300ZX Twin Turbo. I was doing doughnuts in the parking lot of the church that is right down my street. I was backing up and my tires were spinning, there was about 2 inches of ice underneath the 4 inches of snow. Suddenly my tires caught some traction and the next thing i new, I had backed into a 5ft snow drift. I was in snow past my rear tires and could barely get out of the car. I had to call a tow truck to pull me out.... although I did manage to hit 140mph before my tires suddenly caught....