The move was described as “back to the future” by IMSA president John Doonan as sportscar racing heads into what is predicted to be a new golden era across the North American series and the World Endurance Championship.
Doonan revealed that the announcement of the move at Daytona on Thursday ahead of the opening round of the 2022 IMSA series this weekend “makes the hairs stand up on my arms”.
He said: “I was sitting on the hill at Road America, Mid-Ohio and Brainerd [in the 1980s] watching what we felt was the absolute heyday of our sport; we would like to celebrate that.
“We are also opening up what I would say will be the next heyday, maybe the biggest ever with the top category.”
IMSA explained that the GTP name is also appropriate for the forthcoming era because the LMDh and LMH regulations allow manufacturers to incorporate design cues from road cars into their racing machinery.
GTP, which stood for Grand Touring Prototype, was introduced into what was then called the…
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