The Mercedes-Benz Sprinter has been sold under many nameplates: Dodge, MB, Freightliner, etc. It was the first of the modern eurovans sold in the US. Perhaps because of the head start it is the dominant high-roof camper conversion platform in the U.S., both DIY and commercial Class B.
The Sprinter is famed for huge cargo volume and for the fuel efficiency of the diesel engines which can get 20+ MPG.1) They are also the largest vans you can possibly buy, with the Extended Body option on the 170“ wheelbase extending to a full 24 feet long.
The “super high roof” and (discontinued?) “mega roof” appear to have fiberglass roofs, though panels are reported to mount to them without issue.2)
See this discussion on which Sprnters have “smart” alternators (E33 in Sprinter-speak).
T1N flat roof area measurements are approximately 52” x 168“ – DesertAdventures
Issues moved to the van issues page with other van types.
The walls are curved in prominently near the top. This can limit space and make building the walls difficult.