2008 A8 D3. Recently the car has become very unstable when hitting puddles of water or bumps on road. Really bad when hitting puddles the car will jerk you left right to the point that it feels like it's going to fly of the road. I can't do more than 40 mph on a rain soaked road. When hitting bumps is the same issue but not as unstable. It is like is over correcting itself to the point where it becomes unstable. Tires are in good condition plenty of thread , it has new wheels on it with spacers and hubcentric rings (it was not doing this when the new setup of wheels and tires was put in place). I have plenty with all suspension settings from comfort to dynamic and same results.