Looking for Car dealerships in London? We have selected the top 19 companies for you. We analyze reviews, ratings, social networks and site content and build a rating based on a complex formula. The best company has a rating of 4.5 stars (Finch Chevrolet Cadillac Buick GMC), and the worst company has a rating of 4.1 (MacMaster Chevrolet Cadillac Buick GMC Ltd.).