The lab,Willy, is part lab, pit and greyhound. Got him as a 4 lb pup for my 60th birthday. He is now 5 and weighs 77 lbs. The previous owner,10 years,said he got 19 mpg pulling a golf cart in a v front enclosed trailer from Illinois to Fl. I saw the cart and traiter at his house. Nobdy could lie like that with a straight face!I had a VW combi bus that i ran all over Canada with in 1966 67 68 ,pulling a 14 ft. aluminum boat. I never really missed cruising at 75 mph so I'll probably be happy with my toy.I have A/C but was advised fuel economy will suffer. It has aftermarket cruise,audiovox,but the PO and I can't get it to work. I have the installation insructions but i think they were translated from Jappanese to Russian and then to English (dial 2 for Espanol). I'll keep plugging and maybe I'll get it. Thanks for the reply. Rocky