I dislike the current emphasis on hard seats (and this applies to most other brands as well- Toyotas and Hondas are the worst). Enthusiast magazines can rave all they want about great support, etc, but the softer seats in friend's '92 Caravan are more comfortable than these in my 2013.
I have an SXT model, which is sort of mid level in Grand Caravans, and it does have a power seat. However, that is an OPTION, and it should be standard above the SE model.
see full Dodge Grand Caravan review
What Our Members Are Saying about the Seat Room and Comfort of the 2010 Subaru Impreza / WRX / Outback Sport
2010 Subaru Impreza / WRX / Outback Sport Seat Room and Comfort: Cons
There is no lumbar support which makes it tough for drives over 2 hours. The seats could be better for its class. I think Subaru remedied this issue in the new body style, however.
see full Subaru Impreza / WRX / Outback Sport review