and xfire82, don't worry. that first video is footage from Nurburgring, so that is in fact a closed-circuit race track, and not a public road. I know it looks like one, but it isn't (ironically, it's my video game experience that allows me to recognize that track so easily!).
I could see that the M5 easily has more power, but the M3 driver likely has more experience on that track. what I actually liked was the silver hatch at the very beginning (like a Peugot 306?) that the M3 simply could not catch under power. That was the highlight of the whole video for me. lol.