I have a gopro8. I take it to the track with me so I can watch and learn when I get home. The tracks I run on require you to have windows down to do point bys. If i fix the go pro to the rear window i can see my hand position on the wheel and the shifts, rpms, mph, etc. but the wind comes in the window and the sound is really bad and i can't hear the engine noise. If i fix the go pro to the front window i don't hear any of the wind noise and get a nice engine noise but can't see the wheel, etc. any thoughts on how to get the wind noise down and engine noise up and fix the gopro to the rear window?
I'm far from an expert on GoPro's, but I know they make what's called a Wind Jammer that fits over the microphones and muffles the wind noise. Check places like Amazon or GoPro itself for these items. I'll leave the answers to your other question(s) to the experts.