Honda Insight (Score 1)

If all you're looking for is a car and high miles per gallon, the Honda Insight is far from an ideal choice. Volkwagen's Golf, Jetta, and Beetle TDI's (diesel engines) all get excellent mileage, with the Golf TDI approaching the Insight's mpg average, for about $2 grand less. Plus you get a full size, four-door car (as opposed to the 2-seater Insight which is also quite cramped for luggage space). VW manages to make money on the sale of a Golf, while Honda is currently selling each Insight at a loss.

Even if you're looking at an Insight because you want the lowest emission vehicle possible short of a peddle bike, or you think that some people have to adopt the technology just to prove to other companies that it's the way to go, it might be a better idea to wait a few months Toyota's Prius electric-gas hybrid. It's a full-size sedan that's far less compromised than the Insight, with even higher mpg.