You can find us online at 2018 GMC Terrain The premier GMC dealership in the Jacksonville FL area is without a doubt Nimnicht Buick GMC! Take one step on the lot of Nimnicht Buick GMC, near Jacksonville FL, and you will quickly see why we are the premier. Nimnicht Buick GMC has the premier GMC inventory, from pre-owned to new. Nimnicht Buick GMC has the premier GMC service department. Nimnicht Buick GMC has the premier GMC parts department.