We are on our second used coach & both were on a Chevy chassis with a 454 for power. First coach died of natural causes at 29 years of age. Engine & chassis were still good, the coach part failed. It was donated to the kidney foundation. Our current coach is a 99 Winnebago Adventurer that looks & acts like new, only having 20K miles on the odometer. Be sure that whatever chassis interests you is still in production (easy parts supply) vs. not in production chassis (questionable parts supply)