Tested with a 1994 3000GT VR4. AWS is pretty visible in this video when I turn full lock. I turn full lock twice on each side, which is why you see the wheel pop out twice. At around 3/4 of the way through the video I'm jerking the steering wheel back and forth, and you can see it activate then as well.
The AWS system is same phase, meaning the rear wheels turn in the same direction as the front wheels when it activates. The AWS is controlled by a system of valves at the rear differential. There's a valve that limits the AWS to above a certain speed, so it doesn't make parking more difficult. There's also a valve that activates the AWS based on a pressure differential from the two feed lines from the front power steering rack.
The system is extremely stable for lane changes, and helps keep the rear end in check in corners. Professional drivers that have tested the AWS through slaloms say it makes the car feel "different" but they say it's also easier to go faster because the rear end doesn't slide out like it would with no AWS.
Notice the Active Aero front air dam in the video. It pops down at around 48 mph.
disclaimer: I am in no way responsible if you try this and do something stupid or hurt yourself, etc.
