Market overview: Which Bentley models are currently the most popular on the used car market? AutoUncle has analysed 44 used Bentley cars that are currently for sale at 44 dealerships. The three most popular Bentley models as used cars are: Continental, Bentayga, Continental GT. Prices start at around £117,950, and the average price for a Bentley on today’s used car market is £140,813.