In May 1940, while covering the retreat from Dunkirk, a Mark 1 Spitfire flown by RAF ace Squadron Leader Geoffrey Stephenson was shot down and crash-landed on a beach in northern France, where it slowly sank into the sand. 　　The wreckage was finally recovered in the 1980s and stored anonymously in France for more than 20 years. 　　Guy Martin - speed junkie, motorcycle racer, lorry m...