Chassis is the same on almost all class c motorhomes but the coach is were the difference is. When I bought a Thor I wound up with a 2 page list of things that needed fixed under warranty. While I was going through the list with the service manager I asked what I should buy for my next motorhome to avoid all these quality issues? He said if you ever get to go through one of the rv factories you would see what the problem is. I asked who has the least issues. He said buy a Tiffin. They by far need less warranty work to get them right. Also he said in general class c's are worse than class a's. I don't think he was trying to sell me a more expensive rv but he might have been. I think I would look at one real close before I spent my money.