Here's more help on picking the right fuel efficient car.
At the risk of hybrid car overload again this week on our Blog page, today comes word of Toyota's traveling dog-and-pony showHighway to the Future: Mobile Hybrid Experience coming to the New England area.
The event includes exhibits on alternative fuels and their production, environment and resources, and a Prius Driving Experience simulator. Click the link above to see if the tour will be near you this summer and whether actual vehicle test drives will be offered. Toyota is also planting trees in conjunction with the tour, to offset the "carbon impact" of hauling its equipment cross country.
This is just one way to help you decide on what type of fuel efficient vehicle might fit your driving and lifestyle. I certainly wouldn't make a decision based just on one such event, but also check out reviews (scroll down) of hybrids, clean diesels, and economic gas-powered cars. If you can rent one for a week or so, that kind of personal test drive would see if a vehicle lives up to any expectations and how it performs for the way you'd use it.
If you really want to go green, you could research the "dust-to-dust" environmental impact of a vehicle from its manufacture to end-of-life recycling. But beware, any Internet results can be dubious and are not necessarily vettedoften proving what I call Newton's Unwritten Law, for every Ph.D. there is an equal and opposite Ph.D.