Think that the red fastback was Gary Huxford's. He was a member of the "Miramar Racing Team" together with Alex Wilson in his hybird 105E/100E that he built a replica of. These guys used to compete at Palmer Head, then drive their cars home on the road.
The other memeber of the team was Trevor Eve in his blue 1650cc 105E that I recall was fastbacked. I recall John Mines of Morris Ford, Bambina Mid Cooper S and JRM fame built the car that was unfortunately wrecked when it came away from its A Frame. Will post a picture of the car which I think is at Alexander Road Hill Climb Wellington.