resource for researching vehicle fuel efficiencies
GreenerCars.com
Has some pretty in-depth analysis, although the free website doesn't make it as clear as I'd like how the quantitative aspects work exactly. I'm disappointed that it doesn't say much about diesels, but their reasoning for doing so is reasonable.
Has some pretty in-depth analysis, although the free website doesn't make it as clear as I'd like how the quantitative aspects work exactly. I'm disappointed that it doesn't say much about diesels, but their reasoning for doing so is reasonable.