1986 BMW M635 CSI

€99,000 (£84,600)

The £100,100 made by a mint M635 CSI at Silverstone Classics’ last sale might make this one look good value, but this has 70,000 miles on the clock and isn’t as impressive as the 15k-miler NEC record-breaker. We’d be surprised if the seller had many takers at this level.