Not so fast! More often than not, it is more cost-efficient to stick with your old gas guzzler than taking on a new car payment. We would like to help you make an informed decision by calculating the cost of gas for your current vehicle so that you can see if keeping it vs. the cost of a new or used car payment makes sense. Simply answer the questions below and you can quickly see if trading in your vehicle makes sense today. You can even calculate your cost if gas prices increase.