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 Rightsizing for Retirement What does your home really cost? Insurance Needs Assessment: Married With Children When you’re married and have children, insurance needs will be different. When Does Your Personal Car Become a Commercial Vehicle? At what point can you call a personal vehicle commercial?