As irony would have it....I lined up with a new boss 302 last night. I had 3 passengers with total weight of about 150 lbs. we ran up to 140 from a low roll and I ended up about 1/2 car to a full car ahead. My sedan is a DCT and I would pull when the 302 shifted but in gear it seemed like the 302 was very even with the M3... Very closely matched acceleration.
2013 M5 Silverstone/Black
2013 UGR SL TT White/Black