I was just in New York for Quattroporte training. On hand was a Mercedes S500, S55, BMW 745i, Jaguar XJR, and an Audi A8L for comparison. It was also my first time driving any of those cars. here are my impressions; These are all fine sedans, I must say. However, the "Ultimate Driving Machine" award now belongs to the Quattroporte. It has 400bhp to move it with authority. The only car that felt faster in a straight line was the S55, which felt like a German version of a muscle car. All the other cars have decent power to move you along, however when you hit the twisties, it is all over. The Q-porte blows them all away in the corners, hands down, it is not even a contest. It is the only sedan that I know of to have the weight biased towards the back, giving it similar characteristics to a mid-engined sports car, and you most certainly feel the benefit of this. The paddle-shifter, now called Duo-Select, defaults to the automatic mode, and it is quite smooth, much better than any other I've ever experienced. Styling is another knockout punch. Absolutely gorgeous to see it rolling down the road. And the sound! Wow! If you love Ferraris, your 4-door version has arrived.