Roy Foss Cadillac Thornhill is a friendly, purpose-built, full-service Cadillac dealership providing the Toronto area with new cars, used cars, parts, and extensive vehicle service. We're proud to represent Cadillac, famed for its style, quality, and incredible luxury. Backed up by our friendly, helpful, and experienced team of Cadillac professionals, you'll find yourself looking forward to your next visit. Visit Roy Foss Cadillac Thornhill, near North York, Markham, and Richmond Hill, ON.