Market overview: Which Daihatsu models are currently the most popular on the used car market? AutoUncle has analysed 36 used Daihatsu cars that are currently for sale at 43 dealerships. The three most popular Daihatsu models as used cars are: Sirion, Terios, Copen. Prices start at around £2,290, and the average price for a Daihatsu on today’s used car market is £4,181.