It's a Class B camper van, not a Class C. They were sold by Airstream for a couple of years around 2005. I think they sold around 200 or so. It was an americanized James Cook Westfalia RV imported by Airstream and modified for the American market.
2015 Advanced RV Ocean One Mercedes Benz Sprinter
Previous Class Bs:
2011 Great West Van Legend Sprinter
2005 Pleasure-way Plateau TS Sprinter