1924 Fiat Mesfistofele
”Mefistofele was a project by Sir Eldridge who wanted to make a record-breaking car. After purchasing an SB4 Corsa, Eldridge went on to lengthen the chassis using parts from a London bus (!) and add a modified 21.7-liter six-cylinder Fiat A12 aircraft engine with 4 carburetors that produced 320 HP at 1,800 rpm.
On July 12, 1924, the car, which got its name from the bangs and smoke it emitted, broke the world speed record at a speed at 234.980 km/h. Fiat’s owner, Gianni Agnielli, bought the car in 1964. After a lengthy restoration process, it is now in perfect working order and is a part of Fiat’s historical collection.” via