"Beast of Turin" More than 100 years ago the Fiat S76 was the fastest car in the world. 1911 Fiat built only two examples of the "Hell Machine". From more than 28 liters capacity, this 4 cylinder draws a full 200hp, enough for a top speed of 290km/h. Napier Bentley from Chris William. The red beauty, equipped with a 24-liter Napier Sea Lion engine, is built on the chassis of an 1929 8-liter Bentley. Derived from a Napier Lion aircraft engine, the 12-cylinder, W-shaped boat engine manages to develop approximately 550 hp (410 kW).