Engineering:Front-engine, rear-wheel-drive layout

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Short description: Automobile layout
FR layout

A front-engine, rear-wheel-drive layout (FR), also called Système Panhard[1][2][3] is a powertrain layout with an engine in front and rear-wheel-drive, connected via a drive shaft. This arrangement, with the engine straddling the front axle, was the traditional automobile layout for most of the pre-1950s automotive mechanical projects.[4] It is also used in trucks, pickups, and high-floor buses and school buses.

Front mid-engine, rear-wheel-drive layout

FMR layout, the engine is located behind the front axle


FMR cars are often characterized by a long hood and front wheels that are pushed forward to the corners of the vehicle, close to the front bumper. 2+2-style grand tourers often have FMR layouts, as a rear engine does not leave much space for rear seats.

  • 1940 Oldsmobile chassis showing a typical front-engine, rear-wheel-drive layout
    1940 Oldsmobile chassis showing a typical front-engine, rear-wheel-drive layout
  • The 390 cid V8 engine in a FR 1968 AMC AMX functionally straddles its front axle, with the centerline of the shock towers basically bisecting the center of the air cleaner
    The 390 cid V8 engine in a FR 1968 AMC AMX functionally straddles its front axle, with the centerline of the shock towers basically bisecting the center of the air cleaner
  • The straight-6 DOHC XK engine clearly sits behind the front axle of an FMR Jaguar E-Type
    The straight-6 DOHC XK engine clearly sits behind the front axle of an FMR Jaguar E-Type
  • All Chevrolet Corvette from the second through the seventh generation are FMR. Only ancillary aspects of this Chevrolet Corvette ZR-1's engine may lie above the front axle.
    All Chevrolet Corvette from the second through the seventh generation are FMR. Only ancillary aspects of this Chevrolet Corvette ZR-1's engine may lie above the front axle.
  • An FMR Dodge Viper showing its 8.4 L V10 positioned behind the car’s front axle
    An FMR Dodge Viper showing its 8.4 L V10 positioned behind the car’s front axle

See also

References

  1. ↑ "The Nostalgia of Forgotten Gods: Panhard & Levassor, France, 1886-1967" (in en). https://roarington.com/media-house/stories/the-nostalgia-of-forgotten-gods-panhard-and-levassor-france-1886-1967. 
  2. ↑ "History of the 1899 Panhard". https://teampanhard.org/history-of-the-1899-panhard.html. 
  3. ↑ Patrick, Sean (24 March 2015). "Theme: Benchmarks – Le Système Panhard". https://driventowrite.com/2015/03/24/la-systeme-panhard/. 
  4. ↑ "Development of a New Hybrid Transmission for RWD Car". www.sae.org. http://www.sae.org/technical/papers/2006-01-1339. 



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