The fact that the screenshot on the website shows the 2J alongside the Alpine A210, the Porsche 917, and Jaguar XJ-13 makes me hope there truly could be a "Gr.1V" for GT7, which would also include the Ferrari 330 P4 and Ford Mark IV. Granted, the selection of cars in that footage could just be for promotional use, but still, it'd be nice.
Similarly, I'm still hoping for a "Gr.3V" for vintage grand tourers like the Shelby Daytona Coupe, and perhaps another vintage group for 1950s sports cars, like the Aston Martin DB3S, the Jaguar D-Type, and upcoming racers like the Cunningham C4-R or the Maserati A6GCS.