Ray Laethem Buick Pontiac GMC is Michigan's largest Buick Pontiac GMC dealer. We proudly serve the greater Detroit Michigan community. Our goal is to provide our Detroit-area customers with reliable, competitively-priced new, pre-owned or certified Buick, Pontiac, GMC cars, trucks and SUVs. With a fantastic sister dealership in Richmond, Laethem serves not only Detroit and Grosse Pointe, but also as a great Richmond GMC, Pontiac and Buick dealer! Whether you want a Buick car, Pontiac service or GMC trucks from a Richmond or Detroit dealer, Ray Laethem is the place to go.