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 Message Thank you! Oops! Related Content Assess Life Insurance Needs How to help determine life insurance needs to provide for your family after you pass away. Insurance Needs Assessment: When You're Young and Single Even if you’re young and single, you should still consider protecting yourself. When Does Your Personal Car Become a Commercial Vehicle? At what point can you call a personal vehicle commercial?