Quoting prove_it:
What? Why? Ever drive one?
Yes...Have you?
They're like an exacto knife in the curves.
The 1988 model did something like 65mph in the slalom, which was unheard of at the time...faster than the Porsche 911 of the same era.
If I remember correctly they work on a degree of steering wheel rotation system rather than on a speed sensitive setup like our cars.
I'm note sure the numbers, but up to a certain percentage of wheel angle was steering same phase like ours, then it transitioned to steering opposite phase. See this
VIDEO