Interested in a Fuel Efficient Car? Estimate how many months it may take to recover the out-of-pocket costs when buying a more efficient vehicle. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content Stop Wasting Money One way to find money is to examine your current spending habits and eliminate money wasters. Bridging the Confidence Gap In the world of finance, the effects of the "confidence gap" can be especially apparent. Understanding Marginal Income Tax Brackets An inside look at how marginal income tax brackets work.