But not self-confessed speed addict Zef Eisenberg ... top speed of 206.4mph in his modified Porsche 911 Turbo. The double-whammy is a tribute to one of Eisenberg’s heroes, Sir John Surtees ...

A man who less than two years ago was recovering from a "near-death crash" at 230mph has become the fastest biker to ever ride on sand. Guernsey businessman Zef Eisenberg, 45, rode his 350 horse ...