THE POLK PROMISE: Driven by Family. Defined by Integrity. Determined to Earn Your Business. Since 1995, Glenn Polk CBG of Gainesville has proudly served Gainesville, TX, with outstanding sales, service, and parts as part of the trusted, family-owned Glenn Polk Auto Group. We offer new Chevrolet, Buick, and GMC models, plus pre-owned options. With additional locations offering new Ford, Chrysler, Dodge, Jeep, RAM, Fiat, and more Chevrolet vehicles, we ensure a match for every driver's needs.