This rv has low mileage 2006 MERCEDES DIESEL ENGINE with 2007 coach. The engine is before 2008 so no DEF requirement. Perfectly sized at 23 foot. Fun to drive! Cozy to camp in. Rear Bath, Shower, Wardrobe, Sliding Door, Pantry, Refrigerator, 3 Burner Range, Round Sink, Slideout Sofa w/3 Sets Seatbelts, Dinette w/2 Sets Seatbelts, Overhead Cab Bed, Slideout and awning. Fully contained with on board generator, holding tanks and fresh water tank. 2 new Marine house batteries. Hard wired EMS. Great tires! Many extras included in price. Link to original brochure : https://library.rvusa.com/brochure/07Viewbro.pdf