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Development mule

From Wikipedia, the free encyclopedia

Porsche 918 Spyder development mule in Monaco
Porsche 918 Spyder development mule in Monaco
A camouflaged pre-production BMW X5 mule near Munich in October 2013
A camouflaged pre-production BMW X5 mule near Munich in October 2013

A development mule (test mule, or simply mule) in the automotive industry is a testbed vehicle equipped with prototype components requiring evaluation. They are often camouflaged to deceive competitors and thwart a curious automotive press.

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Transcription

Application

Mules are necessary because automakers must assess new aspects of vehicles for both strengths and weaknesses before production. Mules are drivable, often pre-production, vehicles,[1] sometimes years away from realization and coming after a concept car that preceded the design of critical mechanical components.

Mules may also have advanced chassis and powertrain designs from a prospective vehicle that need testing, which can be effectively concealed in the body and interior of a similarly sized production model.[2][3]

If no comparable vehicle is available in-house or an external benchmark is being used mules may be based on another manufacturer's model. For example, in the 1970s the new powertrain package of first-generation Ford Fiesta was developed using mules based on the then class-leading Fiat 127, as Ford had no comparable compact model of similar size to utilize.

Mules are also used to conceal styling changes and visible telltales of performance alterations in near-production vehicles, receiving varying degrees of camouflage to deceive rival makers and thwart a curious automotive press. Such alterations can span from distracting shrinkwrap designs, somewhat reminiscent of dazzle camouflage, to substituting crude cylindric shapes for taillights, non-standard wheels, or assemblages of plastic and tape to hide a vehicle's shape and design elements.[4]

Development mules are often used very heavily during testing[5] and scrapped. Occasionally they are acquired by members of the automaker's engineering team or executives overseeing the design process.[6][7]

See also

References

  1. ^ "Spycam: 2010 Ford Mustang". Motor Trend. December 2007. Retrieved 2011-09-13.
  2. ^ Healey, James R. (2009-08-14). "Drivers could get a charge out of Chevrolet Volt". USA Today. Retrieved 2011-09-13.
  3. ^ McCraw, Jim (September 1992). "Sneak Previews of U.S. Cars to Come". Popular Science. 241 (3): 68–72. Retrieved 2011-09-13.
  4. ^ Dunne, Jim (December 1991). "Detroit Spy Report". Popular Mechanics. 168 (12): 108. Retrieved 2011-09-13.
  5. ^ For example, "...pushed the development mule to 150.583 mph (242.340 km/h)..." Schorr, Martyn L. (March 1993). "Show of Force". Popular Mechanics. 180 (3): 59. Retrieved 2011-09-13.
  6. ^ Truesdell, Richard. "John Goergen's 1966 343 prototype" (PDF). Musclecar Enthusiast: 59. Retrieved 2011-09-13.
  7. ^ Ohio AMX (2007-06-07). "1966 Drivable AMX Prototype". Archived from the original on 2012-05-09. Retrieved 2011-09-13.
This page was last edited on 18 May 2020, at 09:39
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