I came across a post from a few years ago here where they mentioned the factory tried to enter two 911 2.0 liters in the GT 2.0 class and were denied. They wore numbers 73 and 74.

Is it possible these were the lightweight 1969 GTS they entered in the Marathon de la Route?

Or maybe 1968 911R’s? Or early ST’s with 2.0 liters?

Anyone know the serial numbers of them?