Hmm, what would be "completely staged" in this context? That he created the sculpture? I can imagine him observing the interesting view from the car in some other context, then storing it away a little like a location (as Helmut Newton used to scribble possible locations in notebooks). Then the sculpture and something lit up in his head and he manoeuvred the car...
Or of course it could have been completely dfferent

In any case, thanks for the photo which I didn't know
