March 73S

Sports prototype race car

Racing car model

March 73S
Technical specifications

Category	Group 5
Chassis	aluminium monocoque with carbon-fibre reinforcements
Suspension	double wishbones, push-rod actuated coil springs over shock absorbers, anti-roll bar
Engine	BMW M12/7 2.0 L (122.0 cu in) I4, naturally-aspirated, mid-engined
Transmission	Hewland FT200 5-speed manual
Power	300 hp (220 kW)
Weight	700 kg (1,543 lb)
Competition history
Debut	1973 1000km of Monza^[1]

The March 73S is a Group 5 prototype race car, designed, developed and built by British manufacturer March Engineering, for sports car racing, in 1973.^[2]

References

^ "March 73S group 5 (1973) - Racing Cars". tech-racingcars.wikidot.com.
^ "1973 March 73S". conceptcarz.com.

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March Engineering

Founders: Max Mosley; Alan Rees; Graham Coaker; Robin Herd

Notable drivers: Chris Amon; Jo Siffert; Niki Lauda; Ronnie Peterson; Vittorio Brambilla; Henri Pescarolo; Lella Lombardi

Formula One cars: 701; 711; 721; 731; 741; 751; 761; 2-4-0; 771; 781; 811; 821; 87P; 871; 881; CG891; CG911B

Formula Two cars: 702; 712; 722; 732; 742; 752; 762; 772; 782; 792; 802; 812; 822; 832; 842; 85J; 86J

Formula 3000 cars: 85B; 86B; 87B; 88B; 89B

Indy Lights cars: March 86A

Formula 5000 cars: 72A; 73A; 74A; 75A; 76A

Formula 3 cars: 693; 703; 713M; 713S; 723; 733; 743; 753; 763; 773; 783; 793; 803; 813

CART cars: 81C; 82C; 83C; 84C; 85C; 86C; 87C; 88C; 89C; 89P; 89CE; 90P; 90CA

Sports prototype cars: 707; 717; 817; 827; RC82; 82G; 83G; 832; 847; 84G; 85G; 86G; 87G; 88G; R87E; R88C

Group 5/Group 6 cars: 73S; 74S; 75S; 76S; 77S

Sports 2000 cars: 81S; 82S; 83S; 84S

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