I actually liked the E46 ///M3's metallic rasp. I'd be glad if it came back in the F30 ///M3.
People kept on moaning about the loss of the E46's sound when the V8's came around, now something sounds similar it's again not good enough.
And obviously this is just a prototype so it'll sound different than this in the end.
If you don't like that sound go have a look at this
to hear why the potential of its rasp is good
Most of you guys are gonna slap on an aftermarket exhaust anyway