Vintage Cruiser 19ERD - What's the difference?

Not sure what the Vista difference is but on the Vintage they changed the steps so there is no well now at entry door. And you know as you are carrying 150 gallons of water seems like an endless supply, we did 8 days in Glacier without a problem on the fresh water. We did have bottled water for drinking but that is our preference. The roof being one piece fiberglass from front to rear is not an issue. Now I have towed with tandem axle and single axle and do not really notice a difference.