BMW M1 Gr.5[1]
CategoryGroup 5 silhouette[2]
ConstructorMarch[3]
Sauber[4]
BMW
Designer(s)Italdesign/Giugiaro
Technical specifications
ChassisSteel tubular spaceframe, fiberglass body
Length4,360 mm (172 in)
Width1,824 mm (71.8 in)
Height1,110 mm (44 in)
Axle track1,550 mm (61 in) (front)
1,576 mm (62.0 in) (rear)
Wheelbase2,560 mm (101 in)
EngineBMW M88 3.5 L (210 cu in) DOHC I6 naturally-aspirated (later turbocharged) mid-engined mid engine, longitudinally mounted
TransmissionHewland LG600 5-Speed manual
Power470–900 hp (350–670 kW) @ 9000 rpm
Weight2,250 lb (1,020 kg)
Competition history
Notable entrantsBMW Motorsport GmbH
Debut1980 1000 km of Nürburgring[5]
BMW M1-R

Two experimental versions of the BMW M1, designed to Group 5 specification, were built by both Swiss racing team Sauber, and British constructor March, in collaboration with BMW, for sports car racing, between 1979 and 1982.[6] It was far more developed and heavily modified compared to the BMW M1 Procars, which were built to the FIA Group 4 regulations.[7][8][9][10]

References

  1. ↑ "1981 BMW M1 Group 5 Specifications". Ultimatecarpage.com.
  2. ↑ "Retrospective>> Group 5 Bmw M1 @ Le Mans". Speedhunters. September 11, 2009.
  3. ↑ "The Group 5 March M1 – History – Drive 4 Corners".
  4. ↑ Hundscheid, Marcel (December 15, 2020). "BMW's M1, The Thoroughbred Racer from the late 70's: Group 5 & Le Mans". Motorsport Retro.
  5. ↑ "BMW M1 group 5 (1980) - Racing Cars". tech-racingcars.wikidot.com.
  6. ↑ AutoMedia, Collier (November 17, 2022). "BMW M1 - "It's just that good"".
  7. ↑ Pritchard, Robb (July 6, 2018). "Last Of Its Kind: The Only Surviving Sauber Group 5 BMW M1".
  8. ↑ "BaT Exclusive: Group 5 1979 March BMW M1". December 3, 2010.
  9. ↑ "The M1 for Group 5".
  10. ↑ Mills, James (April 13, 2020). "How BMW's M1 Procar Championship came to be—and almost didn't".
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