FWIW, anyone thinking about buying a Prius will find pretty much all the info you need at www.priuschat.com. The Prius does have a lot of cargo space with the rear seats folded down. On a cost/benefit basis, the savings on gas will probably not make the added cost worthwhile (this is true for most if not all hybrids, I think). For me, low emissions was important in addition to the fact that it does everything I need a car to do.