John Engle was killed at Mid Ohio in his BMW M3 when it spun on oil into another stationery car that had spun two laps earlier. He hit the other car in the rear with his driver side door at high speed, some say 100mph. The cage apparently failed and it took an hour to cut him out. The other car driver has bruising and a torn muscle. It makes me revisit the safety side yet again. I'm going to improve my cage over the winter as a result.