Jay Leno interviewed Peter Brock in the bestest VW van ever. It turns out he was a (World Champion) hang gliderer since 1973. He credits this van for the championships because it's job was to ferry hang gliders to the top of a mountain and then race across the desert to get them home for some sleep before the next day, reliably.
They talk about Jaray and Kamm's work leading up to the Cobra Coupe.
His bet hag glider styory was hanging in his glider and watching a C-130 fly
underneath him.