John Paul's Buick GMC is your trusted dealer for all your vehicle needs in Greenfield, WI! Drivers from nearby areas have been visiting us for all their vehicle needs. We offer one of the largest Buick and GMC inventory at our Greenfield, WI dealership. You can bring your vehicle to our service and parts department and see the change. We also have a body shop to take care of your vehicle. We have a finance department for your next purchase.