Price when new: $21,610 (standard model)
Dealer used price: $15,231
Private-party price: $14,257
Certified used price: $16,677
MPG (city/hwy): 48/45

America's best-selling hybrid will always be in demand when gas prices rise. But saving $6,400 over the original price should give you some peace of mind upfront, never mind your savings at the pump. The Prius offers best-in-class legroom and plenty of cargo space, too.