Good write up thanks, I'm a bit of an AMG fan myself having owned the N/A SL63 then the Cl65.
Before buying the CL65 I did test drive the later C63, it is a very nice piece of kit and AMG should be proud of getting the exhaust to sound as good if not better than the N/A 6.2 engine. The only problem I had was the image the car was starting to portray and although it shouldn't influence you, it did me.
In particular around where I live there is a young guy who drives his matt grey C63 like an idiot, he nearly wiped me out as I was about to turn right into where I live in a 30 limit, he is going to cause a big accident one day. But then there is an attractive young lady who drives her C63 in a way you should in 30 limits. So there was my dilemma the C63 seemed to me to be the chavs choice of weapon.
I'll be interested to hear your opinions about running costs on the AMG after a year or so, because as someone who doesn't let money get in the way of enjoying himself I did find some of the bills a bit high to say the least.
I also had a less than pleasant experience with one main dealer but found Brooklands (MB World) to be pretty good on servicing.
One of the guys I used to meet up with at the regular MB World get togethers has a tuned E63 giving truly monstrous BHP figures trouble is it looks like a bloody taxi.