Built on the all-new 144-inch wheelbase Sprinter 2500 van, the Roadtrek SS-Agile Class B Motorhome 2008 works equally well as an everyday van or a fully equipped RV. Measuring in at just over 19 feet, the SS-Agile pulls double duty as a vehicle for five, and as a motorhome that sleeps two. With plenty of comfortable seating, via the front captain seats and rear electric power sofa, this Roadtrek Class B motorhome comes with a long galley with all the fixings. You’ll also find a permanent bathroom, complete with vanity sink and sit-down shower, as well as a rear sofa that easily converts to a king-size bed or twin-like beds. Roadtrek Motorhomes.