I remember a show on the history channel about the old style jeeps...
There were a few that had a rack build ontop of the engine so you could drop a can o soup into it, and it would warm up for you. The guy said if you didnt punch a hold in the top, you'd have a real mess on your hands, and a jeep that smelled like baked beens wasnt very sneeky (or something to that effect)
I'm a thinking thats not a bad idea to retrofit something like that to the mercedes... u know, save on food costs during road trips?
~Nate