Just came across this, not the best quality, not sure if it's been here before ? Film of Ken Miles testing the GT40 at Willow Springs.
At the start that is supposed to be Miles arriving in the Cessna. Some footage of a Mustang notch chase car, I think filming the aero
test.
Also couple of photos taken of the Ford, the poor one is a Polaroid discarded by the Shelby/Ford crew that the OP picked up off the
ground
(photos & video: Steve Light)
Mike
https://www.youtube.com/watch?v=BJsLWqVsRvM