Classic auctions

Silverstone Auctions will hold a competition car sale on Friday at Race Retro, covering 40 cars. As well as the Aston Martin AMR1 Group C car, which has an estimated price of £500,000, a 1961 Emeryson Grand Prix is expected to reach more than £150,000 and a 1972 BMW CSL ‘Batmobile’ raced at the Le Mans Classic has a guide price of £100,000 to £125,000.