I voted for the C63, but later changed my mind. I should have voted for the E63.
In the end, it's a question of character. What do you want, the track weapon or the less shouty, wolf in sheep's clothing executive car with the monster under the hood.
For me it's the latter. I'd choose the E63 over any C63 anyday. The difference in weight is not big enough, yet the extra equipment added by the P31 package does make a difference. Still, the E63 would do fantastic on track, while it could take you to work the next morning, and then go buy some groceries. And while doing all that, noone will notice that it's no regular E-Class.
If its free one wont ask themselves a whole lot...but when you say pick ONE...you question the type of person you are or want to become...These AMG creations are some of the Elite in the world...Powerful, Elegant, Equipped, and Balanced...So I questioned myself...My history, my passion, integrity, and enthusiasm...and then I answered...DontBlink...E63 Baby!!