Pain in the Knees Autocross Racing

Vaidol

I entered my first autocross race last week and both of my knees are bruised from being jammed into the door and the center console. Has anyone experienced this and have you a remedy. I am 6'4" if that makes any difference.

I also would like advice on a racing harness bar but not a crazy expensive $700 bar. I cannot digest $700 for a 48" piece of metal to attach seat belts to.