A camper van maker just unveiled a Class B RV based on the Mercedes-Benz Sprinter and it costs more than $300,000

Advanced RV's B Box prototype.
Advanced RV.
Advanced RV has revealed a prototype of its "B Box" camper van built on a Mercedes-Benz Sprinter cab chassis.
The B Box fits a full bathroom, kitchen, and dual living room and bedroom inside of the highly insulated box.
Advanced RV's president Mike Neundorfer estimates that the price will be similar to the company's other vans, which have recently ranged between $310,000 to about $490,000 with a median price of about $380,000.
Advanced RV has begun ma