At first glance, the above choice seems pretty straight forward. A new hybrid, like the Toyota Prius, gets much better mileage, so how can it not be the greener choice? A recent article on Cut Your Carbon Footprint says that in many cases buying a used car is actually better for the environment.

How is this so? What your everyday mileage numbers don’t take into account is the amount of energy used up in actually building your car. If you buy a new hybrid, you drive it off the lot with a carbon footprint equivalent of burning 1000 gallons of gas. With a ten year old Tercel, for example, you don’t have to add that to your carbon footprint, giving you an instant advantage. It could take you years and thousands of miles to overcome that initial handicap before your ‘Eco-Friendly’ car is actually the better choice for the environment.

Certainly, this is simplifying the argument. There is something to be said for buying a hybrid car where the money you spend supports further products and investment in fuel efficient cars. As bad as most car manufacturers are for the environment, the truth is that if they didn’t make any money then we would be even further from having the more efficient and electric cars that are so badly needed to stop global warming.

Ultimately, the decision has to come down to the individual and there is no ‘right answer’ for everyone. But don’t get trapped by looking only at the mileage of a car when there are in fact so many other aspects of the car that contribute to your carbon footprint.