I knew the audio was gonna get bad, but I had to see how bad. For the next one, I put a piece of duct tape over the microphone holes and it seemed to help quite a bit.
Because of the viewing angle of the lens, I think I'd have trouble mounting it in a location that could see the wheel. I'll look, though. This same problem prevents me from getting the gauges into the shot.
I can't wait to make a pass at TRP with it again. It definitely pulls the top end of the revs better than it used to.