Market overview: Which Saab models are currently the most popular on the used car market? AutoUncle has analysed 27 used Saab cars that are currently for sale at 44 dealerships. The three most popular Saab models as used cars are: 9-3, 9-3 Cabriolet, 9-5. Prices start at around £1,490, and the average price for a Saab on today’s used car market is £4,096.