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The original quattro centre differential (1980). Volkswagen Group has been developing four-wheel drive (4WD) systems almost since its inception during the Second World War.The Volkswagen Kübelwagen, Volkswagen Schwimmwagen, and Volkswagen Kommandeurswagen were all military vehicles which required all four road wheels to be "driven", the latter being a 4WD Volkswagen Beetle.
The Jeep Wrangler (pictured is a TJ Wrangler) is a 4WD vehicle with a transfer case to select low-range or high-range four-wheel drive.. A four-wheel drive, also called 4×4 ("four by four") or 4WD, is a two-axled vehicle drivetrain capable of providing torque to all of its wheels simultaneously.
These, particularly the Quattro, would extensively develop this drivetrain with the use of viscous couplings and differentials to provide a safe and drivable car. The first off-road / on-road hybrids such as the Range Rover also chose the permanent all-wheel-drive system rather than manual selection.
The Audi Sport Quattro S1 was a variant of the Quattro developed for homologation for Group B rallying in 1984, and sold as a production car in limited numbers. [4] It featured an all aluminium 2,133 cc (2.1 L) Inline-five engine with a bore x stroke of 79.3 mm × 86.4 mm (3.1 in × 3.4 in) DOHC 4 valves per cylinder, Bosch LH Jetronic fuel ...
Of the Volkswagen Group's other marques, the "quattro" nomenclature is used for 4WD Audi cars. Brother companies Škoda simply uses the nomenclature "4x4" after the model name, whereas Porsche merely uses "4". [2] None of the above trademarks is specific to any particular 4WD system or technology being employed.
4MATIC gearbox and a V8 engine. 4Matic (stylized as 4MATIC) is the marketing name of an all-wheel drive system developed by Mercedes-Benz.It is designed to increase traction in slippery conditions.
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A drivetrain (also frequently spelled as drive train or sometimes drive-train) or transmission system, is the group of components that deliver mechanical power from the prime mover to the driven components.