We nearly got the Solera M-B diesel, it is IMHO an upscale model. However, the approximately 1,200lb NCC and 4,220lb towing limit ruled it out. Our Sunseeker has 3,400lb NCC and 7,500lb towing limit which is what we needed. There are a lot of conflicting MPG reports on several forums because everyone travels at different MPH. Additionally, Winnebago has some aerodynamic models that achieve about 2 MPG more (if you are willing to pay over $20,000 more over the Solera) - we nearly settled on that one too until we learned more. Best we have been able to figure out, with all things being equal (NCC, Towing, and Length) the same, the Sunseeker in GM trim gets about 11MPG, in Ford trim about 10MPG (but more NCC and towing), and Solera 14MPG.