That's what I was thinking too, why the feck would you compare a luxury barge mile muncher with a C63??
C63 vs M3 vs RS4 vs IS-F
XJ vs A8 vs 7 series vs GS vs S Class
There was a survey done a couple of years ago on one of the motoring TV shows, they asked the general public which was the most prestigious car out of a line up, there was a 5 series, E Class, Lexus of some description and an X-Type, and the Jaguar although the cheapest was picked by 80% of the poll.
All my mates laugh at me now I have bought another Merc, for most it is seen as a brand that their Dads apsired too, for some strange reason they all thought my Audi of all things was a much nicer and more desireable car.
You need to really know Mercs to appreciate them, but not as many do as we think.