I know for a fact that a well driven M3 is nothing to be trifled with. John Hopkins had his way with me in one on Highland Valley Rd. while I was trying to dog him hard on my 2007 RT. I was flat outgunned that day.
I didn't know it was Hopper until our local riding club had him as a guest speaker. That was good fun, but I don't take encounters with car drivers lightly despite that most aren't skilled racers.
BTW, wasn't the bike an FJR?
Sticks and stones, love.
2011 BMW R1200GS, 2004 KTM 950, 1996 ATK 605 ESDS