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 The ABC’s of Auto Insurance What kind of auto insurance should you have? Do you know? Once Upon a Goal Do you know how to set up your financial goals for success? This knight does. Should I Pay Off Debt or Invest? This calculator will help determine whether you should invest funds or pay down debt.