Trev,
The owners of P1034 state that their car was a road version of the GT40 because it has a clock on the dash.
"The pine green car left the factory with black road car trim, and as the Ford Advanced Vehicles Production Car Record Sheet records, a heated windscreen, reversing lights, wing mirrors, an electric clock and two fuel gauges"
I am fortunate enough to able to class the second owner of P1034 (as mentioned in the article linked above), a very close friend. I will ask him if he has any photo's that may prove useful to you Trev.
interior temperature (cause it gets very hot inside