I had a new M5 to try just didn't do it for me but sounded great!
Diesel smell has never bothered me and never used gloves either. Torque makes up for it.
F10 M5 Competition White / Sakhir Orange
Loaded, Akra carbon titanium exhaust, Carbon trim, Carbon spoiler, RKP carbon front lip + diffusor.
F31 330d M Sport (Alpine White / Red)
Loaded, 405M 20", M perf: skirts, brakes red.