We replaced a 1994 Voyager with this 2007 Caravan. The spirit is the same, with a tidy wheelbase and four bucket seats, but the new Caravan is smoother and quite a bit bigger inside. It is getting the same mileage--about 17 mpg in short trips around town and about 24 mpg on the highway--but is noticably better in acceleration despite having the same basic engine as the '94. My wife wanted the short wheelbase minivan for its maneuverability around town and is very happy with it. I find it a pleasant car when I drive it, particularly cruising down the highway. A piece of weatherstripping needed to be replaced on the front door, otherwise it has been perfect so far.
Space, maneuverabilty, four comfortable bucket seats. Low price for what it offers. Sirius radio is a nice bonus.
It's fine as it is. Maybe a six speed automatic transmission would increase acceleration and in town mpg, but it is obvious why the Dodge/Chrysler minivans outsell their closest competitor (the more expensive Honda) by two to one.
The Caravan now has 56,000 miles, has had new brakes and tires and battery (once each), which are usual maintenance items at this age. Driver's power window motor was replaced as was EGR valve. Over all, the van continues to please.