The official figures for the family merc C200 is 46.3 and the actual over 85000 miles is 47.8. Pretty close.
Got to be said its never driven in sports mode ( is there really such a thing on a 2 litre diesel family snotwagon?) and usually like Mother Teresa would do. After all, its not a machine to get the blood flowing is it?
The Fezza did 16mpg driven gently.

I never even looked at the official number