Some real numbers on hybrid cars.
Car Cost,new MPG (City&Hwy)
Toyota Corolla $14926 32
Toyota Prius $22110 46
Cadillac Deville $42790 25
Lexus GS450h $52065 24
Sorry that the columns don't line up, blogger has it's own ideas about justifying text.
Prius costs so much more than the Corolla that you won't recover the costs thru savings on gas anytime soon. The car will be sold before the owner breaks even. Caddy costs less and gets better gas mileage than the Lexus. Plus the Caddy Northstar engine has enough power to beat the Lexus off the stoplights.