I looked at a lot of Class C motorhomes before settling on an Itasca Navion, built on the Sprinter chassis. The one point I haven't seen mentioned above was the lack of legroom in the Ford and Chevy based units. At 6'4" legroom is important to me. The Navion is one of the few vehicles I've ever driven in which I don't have to put the seat all the way back. In the Navion, I can get from the driver's seat to the living space easily, but in the Ford based rigs the doghouse for the engine made it more of a challenge and in some it was actually easier to get out the driver's door and walk around to the side door. The passenger side legroom is nearly non existent in some of the Ford rigs as well. The floorplan in the Navion 24G has a rear slideout housing a queen sized bed, making the effective length of the rig about 28 feet while parked but it shrinks to 25.5 feet while driving. One drawback to having the rear slide is that a hitch mounted bike rack needs to have a drop down or swingaway design to allow opening the slide with bikes on the rack. When towing my Jeep there is no problem with clearance, the slide just comes out over the towbar. The lack of a doghouse also makes it easier (possible?) to have swivel seats, which further expands the living area.