I find the seats to be a major 'comfort' factor. The seats in my old Dodge minivan are extremely comfortable. Most Chevrolet seats are, IMO, hard as a rock. I test drove a 2009 Dodge minivan for a day, and they were so uncomfortable and my back (and my son's back) hurt so much I would never buy one. I consider the tire issue to be a more to do with 'ride' than 'comfort'.
