12 Best Sites For Thousands Of Nationwide Used Car Listings If you’re shopping used, you want reach, speed, and confidence. The best way to access thousands of nationwide used car listings is to combine a few high-coverage marketplaces with tools that verify value and condition before you ever step onto a lot. With new-vehicle prices topping $50,000 in 2025, more buyers are heading to used cars—and casting a wider net pays off with better choices and stronger deals (see Car and Driver’s …