At Key Buick GMC of Somersworth, we understand consumers demand quality service, quality products, and a hassle-free shopping experience. Every new Key Auto vehicle is pre-discounted to reflect available rebates and dealer incentives. With a great selection of quality GM vehicles. You can find the new or used SUV, truck, or sedan you've been looking for with easy financing, quality service, and a commitment to you as a customer to ensure your complete satisfaction.