Market overview: Which Renault models are currently the most popular on the used car market? AutoUncle has analysed 1,137 used Renault cars that are currently for sale at 44 dealerships. The three most popular Renault models as used cars are: Mégane III, Mégane IV, Megane E-Tech. Prices start at around £1,495, and the average price for a Renault on today’s used car market is £10,121.