We recently bought a 2017 used class c-it's under 24ft. The big difference to me is seating areas in the camper. We have only the dinette area to sit in. The driver and passenger seats do not swivel. If you get a bit larger class c there will probably be a small couch as well as the dinette-more seating as well as the front seats might swivel. For my D.W., myself and a small dog the seating inside is adequate and being a shorter class c my D.W. feels ok driving it occasionally. Ours has the drivers side rear slide out for the bed. . It is a Chevy with a gas engine.