In 1923 the Englishman Sir Ernest E.D. Eldridge bought a 1908 Fiat SB4 and mounted a World War I Fiat aviation engine (model A12bis) of 21706cc capable of delivering 306 horsepower. The frame was modified, among other things with the lengthening of the wheelbase. On 12 July 1924 Eldridge managed to conquer the speed record at Arpajon in France with 234.980 km / h.