Hello everyone,
I just wanted to present you this MPG website I found:

www.fuelly.com

I already have my Lexus LS400 (blasphemy!) in the database, it's got a great interface!

Definitely this is the place to direct all those people who have doubts on what mileage any Mercedes may get, instead of creating billions of threads in this forum. I checked on the Fuelly MB section and it is quite a shame not to see too many diesels over there.

Absolutely recommend to check it out!