Welcome to Capitol Buick GMC of Baton Rouge, Louisiana. We have a wide selection of new and pre-owned CARS, TRUCKS and SUVs; also a knowledgeable and friendly staff to help find the right vehicle for you. Capitol Buick GMC of Louisiana offers a service department that will keep up your Baton Rouge Buick or GMC vehicles maintenance and will be happy to service it. If you are shopping on a budget, we are sure our finance department will help find the best options for you. Whether you are looking for a new or pre-owned CAR, TRUCK, OR SUV, please come in and let us show you that we are here to get you what you want and need you as a customer for life. Your Gonzales and Hammond Buick and GMC dealer of Baton Rouge, La. If you are like most of our Gonzales GMC shoppers, then you are interested in a new truck. Capitol Buick GMC has a wonderful selection of Sierra 1500s. If you are looking for something bigger, we have the Sierra 2500 HD and Sierra 3500 HD.