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 Frozen Austin Yellow / Sakhir Orange
Loaded, Akra carbon titanium exhaust, Carbon trim, Carbon spoiler, RKP carbon front lip + diffusor.
F15 X5 M50d - Mineral White w/Mocha Nappa Leather. Loaded, 599M 21" wheels, all M-perf. accessories.