Apparently it was used in the 962:
"Like so many good ideas that have come into production recently, this one is nothing new. It was first tried at Citroën more than 70 years ago, and it even saw duty in Porsche 962 and Audi Quattro race cars during the mid-'80s. But the primitive electronics of the day made the system difficult to tune for commercially comfortable launches and smooth shifting, and system reliability fell somewhat shy of the four-year/50,000-mile warranty target."
So I guess there is some Porsche content.
