I don't understand how you can make an assumption based on the name of my account which I made well over 5 years ago. I personally own a C63... and where you get 80+ is beyond me. The car, with all options, when I was pricing it out, came out to something in and around a tick over 71 if ...
I hope you know that when most manufacturers go about measuring 'MPG'... they measure the consumption at idle.. Which is strange; but yes, it's not always accurate. I'd estimate the 530d receives about the same, if not a bit more efficiency than before, ~30mpg, give or take.
It's pathetic how people bring religion and race into every topic..