Octagon Cars Southampton currently has 18 used cars listed on Local Car Sales, priced from £3,295 to £8,995. The makes they stock most are Nissan (5), Vauxhall (2), Citroen (2), Fiat (1). By fuel type that is petrol (12), diesel (6). Model years run from 2014 to 2019, with an average of 84,300 miles on the clock.