Another bus converter here. I just got back from Burning Man in my BlueBird TC2000(turbo diesel flatnose transit style bus), we got 8.15 mpg for the 3700 mile round trip(including the 8 hours of mostly idling/gridlock getting on & off playa). We took six people and camping gear/bikes for another 5 and the fuel split was about what airfare would have been, but we were able to camp in a much higher level of comfort.

Looking at the weight of the bus, and comparing to my daily driver if it was efficient per pound, it would get 50+ mpg.

Von Slatt is deadon, this type of bus makes a bomb proof RV. Not sure I would really want to live in it full time, but if we ever evacuated for a hurricane I know which vehicle I am going to take.

Xtevan

I am pretty certain I saw someone wearing a home made version at Burning Man last year.