I did a new M3 a few months ago as well. Baited him, and we went from 40mph to 120 going onto a dual carriageway - was very little in it TBH - pulled about 1 car length on him and that was it which could have been down to gear changes I guess. He backed off at 120mph.

Not bad for a stage 1 though!!

'bout a week after that I got nuked by an M5 though - Christ are they fast...