Buick is an American luxury automotive brand under the General Motors manufacturing company created in 1899. Other automotive brands under General Motors (GM) included Cadillac, GMC, and Chevrolet. Here at Easterns Automotive Group, we carry all of these different GM brands. It?s important to us that our customers have a variety of quality used vehicles to choose from. The Buick cars that we have in stock range from about $16,000 to $30,000.