Welcome to Quantrill Chevrolet Buick GMC Cadillac Ltd located on the edge of Port Hope and Cobourg, ON. We’re your premier source for new and used vehicles sales and service in Port Hope, and plan on continuing to be for years to come. Your Northumberland, Peterborough and Clarington Buick, Chevrolet and GMC dealership alternative looks forward to helping you secure your new vehicle, and getting you out on the roads of Ontario. Check out our great selection of new and used cars, trucks and SUVs, and find what suits you.