When you're shopping for a used car, one of the major factors you'll have to consider is what you want powering your automobile. This may be anything from traditional gas to diesel, or even more eco-friendly sources like electricity for hybrids or plug-in vehicles. Although it may seem like these alternative vehicles are becoming more prevalent on the roads, in actuality their popularity is only increasing slightly. That trend should continue for the next several decades, at least according to one report from the U.S. Department of Energy's Energy Information Agency. 

The DOE report predicted that, by the year 2040, 78 percent of all cars on the roads will be gas-powered, down from 82 percent today. While those gas-powered vehicles will still be the dominant option, they will also be more fuel efficient. According to the report, fuel economy is expected to rise from an average of 21.5 mpg to 37.2 mpg in 2040. 

Drivers will likely need this jump in efficiency, as the price of a gallon of gas will increase with inflation. The DOE predicted that the average cost of gas will reach $3.90 per gallon. However, this is significantly better for motorists than other predictions, which expected the expenses to reach $4.40 per gallon. 

No matter what kind of vehicle you're searching for, you may be able to find it at New Jersey State Auto Auction. This lot has plenty of CARFAX-certified cars, trucks and vans available in a variety of styles. You can also choose from a number of different fuel types and brands, providing you with the flexibility you want – all while staying in a budget.