This unit is on a Spartan K2 chassis, a strong Cummins 500 horsepower ISM engine, 16,000 lb independent front suspension, 4 Slideouts, Upgrades to this unit enclude Girard Awnings, Vangard Directv satellite antenna system. Computer desk, China cabinate, Bedroom extra drawers & Shirt closet, Corian shower, Two wall huggers recliners with small book case cabinate, MCD sun screens & shades, Samsung French doors refrigerator, LG 42" HD smart TV, Yamaha Sound Bar.