Grand Touring Prototype may be:
* the 1980's sports prototype class under
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 ...
* the 2020's sports prototype (LMDh) class under
IMSA SportsCar Championship
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