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The March 83G is a 
The March 83G is a IMSA GTP
IMSA GT was a sports car racing series organized by International Motor Sports Association. Races took place primarily in the United States, and occasionally in Canada.
History
The series was founded in 1969 by John and Peggy Bishop, and Bill F ...
/Group C
Group C was a category of sports car racing introduced by the FIA in 1982 and continuing until 1993, with ''Group A'' for touring cars and ''Group B'' for GTs.
It was designed to replace both Group 5 special production cars (closed top touri ...
sports prototype race car, designed, developed and built by British manufacturer and constructor March Engineering, for sports car racing (specifically both the IMSA GT Championship
IMSA GT was a sports car racing series organized by International Motor Sports Association. Races took place primarily in the United States, and occasionally in Canada.
History
The series was founded in 1969 by John and Peggy Bishop, and Bill F ...
and World Sportscar Championship
The World Sportscar Championship was the world series run for sports car racing by the FIA from 1953 to 1992.
The championship evolved from a small collection of the most important sportscar, endurance, and road racing events in Europe and No ...
), in 1983.
References
{{March Engineering Racing cars March vehicles Sports prototypes IMSA GTP cars Group C cars