This is typical of a late model colliding with the outside concrete wall. Depending on the angle of the hit, G-forces upwards of 50 G's can be transmitted to the driver. Up till recently, we only were concerned with the injuries connected with the head being unrestrained. We now know that even with the best safety equipment available, repeated concussion events can accumulate their affect so that the brain and surrounding tissue is less able to offer protection and a permanent condition can result.