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     83G Chevrolet
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  March 83G Chevrolet
 

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Country of origin:Great Britain
Produced in:1983
Numbers built:5 (all engines)
Designed by:Max Sardou, Adrian Newey and Robin Herd
Predecessor:March 82G Chevrolet
Successor:March 84G Chevrolet
Author:Wouter Melissen
Last updated:December 03, 2008
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Click here to download printer friendly versionIn 1981 a completely new generation of sports racers saw the light of the day. The reason for this were the Group C / GTP regulations that came into effect on January 1st that year. While the two were fairly similar, there were some distinct differences between the FISA sanctioned Group C and IMSA governed GTP cars. Group C cars were eligible for the World Championship, which included the 24 Hours of Le Mans, while the GTP cars ran in all the major endurance events in North America, which lost their World Championship status. The main reason for the IMSA to drift away from the FISA was to break Porsche's stronghold on the sport by favouring production engines. Another big difference was that the competition in Group C was leveled by limiting the fuel available for a race, while the IMSA used a displacement based minimum weight.

The IMSA achieved their objective and attracted a wide variety of machines, while Porsche was absolutely dominating Group C. In the absence of the German manufacturer, specialist companies like Lola and March thrived. Both had to make do with the smaller classes in the previous seasons and now that they could take centre stage, the two quickly developed brand new GTP cars. March brought a host of Formula 1 experience to the table and already had a first stab at building a top level sports prototype in 1981 when they developed the BMW M1C for the German manufacturer. Despite showing considerable promise, that project was binned after half a season. It was nevertheless a very useful lesson for March and the basic design was carried over for the March 82G (1982 GTP).

Under the supervision of the seasoned Robin Herd, a young Adrian Newey redesigned the aluminium honeycomb monocoque chassis used in the BMW M1C. It was designed to take a wide variety of engines, making the 82G an attractive prospect for as many customers as possible. Suspension was conventional through double wishbones at the front and rear. Taking full advantage of the ground effects allowed, Frenchman Max Sardou penned a very striking body. The most prominent element was the gaping hole between the front fenders that fed the air to the massive under body Venturis. This unusual shape quickly earned the March the nick-name 'lobster-claw'. While the bodywork evolved over the years, the car retained its distinctive shape, although the nose was not quite as dramatic in the final evolution (the 85G).

Powered by a Chevrolet V8 engine, the March 82G made a startling debut by qualifying on pole for the Daytona 24 Hours; the first ever IMSA GTP race. Unfortunately, gearbox problems put the car out of the race early. At the next big race on the calendar, the Sebring 12 Hours, the Bob Garretson entered machine continued to impress by finishing second behind a Porsche 935. A further three cars were built, two using the Chevrolet V8 and one powered by a BMW six cylinder engines. One of the V8 engined cars was raced by the factory at the Silverstone and Le Mans rounds of the World Championship in the Group C class. The brief campaign was as unsuccessful as the other cars were that season.

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  Article Image gallery (14) Chassis (1) Specifications User Comments (1)