I have always thought the CTS-V was ugly, now this just made it look worse
I am not a huge fan of the E63 either, I prefer the looks of the CLS63 and C63 (I can't stand the Mercedes emblem sticking out of the hood, forgot what that is called, I prefer the look of it when they put it in the grill). Not sure why Mercedes went with square pipes either, round/oval look so much better.
Gotta say the M5 looks like the best looking of the bunch, and I guess comparing a CLS63 isn't fair (even if prices are similar) because that would be more of a M6 gran coupe comparison.