Heading home in the CLS on a nice clear motorway (M58) yesterday lunch time and hit standing water. I was doing around 80 I'd say and was moving from outside to middle lanes. Needless to say, the car started veering violently, I steered into the skids but could definitely feel some active help on the cars part in regaining control. Ended up in a 360 spin which was obviously uncontrolled and somehow remained on the carriageway, was able to regain control and carry on- albeit sweating like a cornered prom queen!! I had been at the dealers yesterday morning working out a deal to swap my two cars for a CLS63. Im having a big re-think! To be fair, I have over the years seen numerous Porsche/TVR/BMW's come a cropper on that stretch, hence my low speed. Would 4WD have made any difference at all? It certainly felt like the rear end let go which created the spin. I fully understand the answer is drive to the conditions and in the round, it was certainly my fault, but if you see a hazrd late, the performance of you as a driver, in this case at least seemed irrelevent, I was just a passenger in an impending (but luckily avoided) crash!