Track stuff is a bit hard to measure though as it often comes down to experience and how much you're willing to push your car.
I've been on track with an E92 M3 and was pulling away in the corners then he'd catch up a bit on the straights. But it was a casual day and most of us were out there to have fun not to compete so I'm sure he was just driving at what he was comfortable with.
There was a 1M that was fkn quick, had no chance of holding him so I let him pass. Was pretty impressed with that car!
I have also been on track with a 360 vert that I'd say was pushing similarly to me. I found us to be pretty close. I was unable to use 2nd gear in some slow spots as I was driving around a driveshaft issue (since been replaced). I think 2nd gear would've given me the edge. I'll post videos when I get home.