Welcome to Martys Buick GMC. From sales, service, parts, finance and beyond, we've been doing it right for over 40 years. We are your total automotive resource! If you are searching for a new or used Plymouth area Buick GMC in the Boston area, our friendly, professional staff is ready to provide you with all the help you need. We can offer you car facts, a quick quote, pre-qualify you for financing, and offer many other free services through our website.