IMSA definitions

IMSA

International Motor Sports Association, founded by John Bishop in 1969. Sanctions, organizes, markets and officiates professional auto racing events.
Found on https://www.encyclo.co.uk/local/22335

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Imsa

The International Motor Sports Association. The North American road racing sanctioning body featuring prototype GTS sports car series.
Found on https://www.ricmotech.com/Racing-Glossary_b_2.html

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