well this is right up my alley. in the pic it's a Suzuki King Quad. I own 2 of them, older ones exactly the same year and model(98 300's). mine are manual transmissions and part time 4x4(you can run 2wd or 4wd). in Arizona you can register any motorbike, quad, 4 wheeler, 3 wheeler, street legal. there are no requirements just pay the fee(very reasonable) and they give you a plate. in the rural areas of Nevada, Oregon, and Alaska you don't need to be street legal, they let you(in fact they almost encourage that you to ride into town) on your 4 wheeler. this makes perfect sense. my 4 wheelers get 45 mpg. my truck nowhere close to that. plus I use mine to prospect areas. in the old days I would drive my truck this makes no sense if you break your primary vehicle you are struck with the 4 wheeler it's no biggie. so in summary a 4 wheeler makes perfect sense if you want to explore large areas, need to run to town for a loaf of bread, you are in the rural west, want to save a boat load of gas. a warning not all 4 wheelers get 45 mpg a lot of the newer go fast ones get terrible mpg. highdesertranger