Imagine what that test/demo drive was like. Ken Miles driving an early 427 side-oiler Cobra on skinny Blue Dots. I would bet that Sahl knew he was watching the master. The caption to the original photo noted that Sahl had more than one Cobra. I have a couple of Sahl's early c1959-60 albums and on one he talks about getting a ticket on the Hollywood Freeway in his Austin Healey. He was a sports car enthusiast for sure.
Here's another to-die-for '65 narrow-fender (as we Yanks called them) 427:
I'd take this car over any other 427, bar none.