I thought that was the issue? This isn't my bias opinion, but if I was looking for competition for the 1m the a and cla 45s would knock it for 6.
I heard a v8 a6(?) go past and I needed to go home to change my pants
But you just can't go past the c63 for noise, as Alex said, it's frustratingly addictive and makes you want to be in it all the time