LOOKING FOR A WELL-MAINTAINED USED CAR? TALK TO A USED CAR DEALER IN CASPER, WY One of the best ways to get a good bang for your buck is by going with a used car over a brand-new one. If you want a well-maintained used car, turn to Platte River Auto in Casper, WY. Our used car dealer can help you find a high-quality truck, SUV or car.