Located in Monroe, WI, just minutes from Illinois, we proudly serve as your greater Madison Buick and GMC new and used car dealership. We provide customers looking for new vehicles, used trucks, or automotive services with a unique purchasing process. We invite all Freeport, IL and Madison Buick and GMC drivers to come see us in Monroe. Pay us a visit today, and what you'll find is the largest selection of new and used cars in Freeport, IL!