The original 456 was available in GT and (from 1996) GTA forms. The difference in name signifies the transmission: the former has a six-speed manual and the latter has a four-speed automatic, only the fourth automatic transmission ever offered by Ferrari. The flowing lines matched the 1990s Pininfarina aesthetic, replacing the hard edges of the previous models. The 5.5 L (5474 cc) 65° V12 engine was derived from the Dino V6 rather than the more conventional 60° V12s used in the 412 and Daytona. It prod ...

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Ferrari 456, Ferrari 456 - 456, Ferrari 456 - 456M, Ferrari 456 - Rare body styles, Ferrari 456 - Awards

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A V12 is an internal combustion engine with 12 cylinders in V configuration. Like a straight-6, this configuration has perfect primary and secondary balance no matter which V angle is used and therefore needs no balance shafts. A V12, with two banks of six cylinders angled at 60° from each other, has even firing with power pulses delivered twice as often per revolution as, and is much smoother than, a straight-6. This allows for great refinement in a luxury car; in a racing car, the rotating parts can be made much lighter and thus mo ...

Including:

• V12 - Aviation
• V12 - V12 road cars
• V12 - Heavy trucks
• V12 - Auto racing
• V12 - Large diesel engines

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In automobiles, V12 engines have never been common, because of their complexity and thus cost. Their use has been thus confined to costly luxury and sports cars, in which they give superlative performance and smoothness characteristics. Prior to World War II, twelve-cylinder engines were found in many luxury models, including cars from Cadillac, Packard, Lincoln, Franklin, Rolls-Royce, and Hispano-Suiza. Packard's 1912 "Double Six" is widely regarde ...

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V12, V12 - Aviation, V12 - V12 road cars, V12 - Heavy trucks, V12 - Auto racing, V12 - Large diesel engines

Read more here: » V12: Encyclopedia II - V12 - V12 road cars

Tatra uses a 17.6 L air-cooled turbo diesel V12 engine in many of their trucks, for instance the Tatra T813 and Tatra T815. Some trucks have been fitted with twin V12s. GMC produced a large gasoline-burning V12 in the 1960s for trucks, the "Twin-Six"; it was basically GMC's large-capacity truck V6, doubled, with four cam covers and four exhaust manifolds. Its engine displacement was 702 in³ (11.5 L), and while power was not too impressive at 250 SAE net horsepower (190 kW), torque was 585 lbf·ft (793 N·m). It was possibly the last gasoline engine used i ...

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V12, V12 - Aviation, V12 - V12 road cars, V12 - Heavy trucks, V12 - Auto racing, V12 - Large diesel engines

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V12 engines were first seen in aircraft. By the end of World War I, the V12 configuration was a fairly popular one in the newest and largest fighters and bombers; V12 engines were produced by companies such as Renault and Sunbeam. Many Zeppelins had V12 engines, from German manufacturers Maybach and Daimler. Various US companies produced the V12 liberty engine; the Curtiss NC Flying boats, such as the first aircraft to make a transatlantic flight, the N ...

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V12, V12 - Aviation, V12 - V12 road cars, V12 - Heavy trucks, V12 - Auto racing, V12 - Large diesel engines

Read more here: » V12: Encyclopedia II - V12 - Aviation