2015 Entegra Cornerstone 45K, You'll rule the road thanks to a Cummins ISX 600 HP turbocharged engine. And with Cornerstone's well-appointed cab, you'll rule it like a king. Eight-way power seats and SmartWheel integrated steering make the ride comfortable, while touchscreen technology allows you to have the controls at your finger tips. , Natural Cherry CabinetryPremium Sound SystemIPadSatellite Dish, Trav'ler Dir TVSolar Panels - DualFreezer, Exterior w/Slide Out Tray15,000-BTU low profile central A/Cs (3) with heat pump, digital thermostat and drain tubes with ducted returns