I lost a wheel once....
It was the last race of the season at the now closed Raceway Park in Blue Island,IL. Earlier in the race I had taken a hit to the driver's quarter. Last lap, headed towards the finish line coming out of turn 4, I see a wheel passing me up..."What the F.....???? why is my car slowing down.... Oh sh....". Had enough momentum to cross the finsih line on 3 wheels and a backing plate. Broke all the studs right off the axle, Ground the backing plate down to the mounting flange, don't know what happened to the brake drum.

Stewart ....... "It's outside your field of expertise." "Poppycock normally is."