2011 Airstream Lounge Model 2011 AIRSTREAM INTERSTATE 3500 (LOUNGE MODEL) CLASS B - MOTORHOME BY AIRSTREAM What do you get when you fuse the legendary quality and design of Airstream with the comfort, control, and luxury of Mercedes Benz? The all-new Interstate 3500, a touring coach like no other. Surrounded in a den of luxury with all the comforts of home, the Interstate 3500 has seating for up to eight passengers, a kitchen, bathroom, convertible sleeping area, and rich Ultraleather bucket seats that swivel to face a mealtime table for four. Powered by a diesel engine, the Interstate 3500 produces 188 horsepower and 325 ft. lbs. of torque. So while it gets 30% better fuel economy than a comparable gasoline engine, it also has the capacity to tow 5,000 pounds! With its engineering excellence, two floorplans, and a host of standard features, you might never leave the Interstate 3500. After all, it's not the destination, it's the journey.