Sounds like complete crap, more like a fart can equipped civic.
They're still working on the mufflers, but I don't understand why anyone on this board would think this sounds even remotely decent, or would even think about comparing this to the current gen M3.
I guess they'll have to pipe more sound into the cabin, hey maybe by then they'll attach speakers to the mufflers to fake outside exhaust sound too!
2015 M3 6MT Stripper | Yas Marina Blue, Cloth, CF | Adaptive M Susp, 437M
2013 X5 xDrive50i | Carbon Black | M Sport + M Perf, 333M Wheels