[safe]

Originally Posted by Chuck Moreland

some 917 variants had active wings. If memory serves it was tied to the suspension mechanically.

I think the advantage of the split wing is the ability to reduce body roll without additional spring rate.

908s, before active aero devices were baned.
I've recently read "Racing Porsches" by Paul Frere from 1973.
Porsche used linkages from the rear suspension arms to control separate wings or flaps. Apparently the stabilizing effect in curves from the split wing was more on the academic side...