Another example is the 1974 AMC Hornet used in The Man with the Golden Gun. Rod Laws of Glenmarch, a cars auction database, said: “Two were made for the stunt where it corkscrewed over a river, but only one was used and its provenance is well known. It sold for $110,000 in 2017. A comparable model went for around $10,000 at the time.”

Provenance is everything, but it’s not enough just to be a Bond car. Peter Haynes of RM Sotheby’s, a classic car auctioneer, said: “There’s no hard-and-fast rule on cost. It depends on the movie, its place in film or cultural history and the actor involved. In some cases, it’s simply the reputation of the star. A DB5 driven in Goldfinger will be worth a lot more than one in a Timothy Dalton Bond film.”

The market is wising up, according to Mr Wrightson. A few years ago, investors just bought the best-looking famous cars they could get their hands on, he said. Now they understand the importance of matching chassis and engine numbers, identifying a specific car’s history and checking whether it’s been converted to right-hand drive.