In the while ATV universe there are only maybe 5 SXS's that are trail width rated. Polaris has one rzr 570, Honda pioneer 500, can am maverick trail, artic cat/textron wildcat trail, and cf moto offers one in a 570 and 700 trail. None of these however offer a 4 seat. I too want a sxs in a trail width so that I wouldn't be hindered by any restrictions, but with the lack of options available I don't know if it's a possibility. Have you thought of buying 2 2up atvs? One for you and one for the wife, one kid rides in back of each. Most of the major brands offer a 2up ATV right now. The base Polaris 570 2up is built on the same frame of a regular 570 machine, but instead of a rear rack it has a seat. Two of those would probably cost about as much as a sxs. They also have one with a longer wheelbase and better passenger seat. I drive a cat TRV (two rider vehicle) ATV and it's done everything I've ever asked of it.