How did Dale Earnhardt Sr. die in the race car accident at Daytona?

Dale's car had slid up the track and struck the wall at 150 mph and the #36 car of Ken Schrader had no where to go and hit Dale's car just behind the passenger door at 150 mph. The impact was so sharp and quick that it broke his neck on impact. An investigation showed a faulty seat belt was part of the cause of death.