I just drove my used 2004 545 w/sport package in the rain for the first time last night...and wow! Is it me or is it easily prone to hydroplaining? The last time I drove a car with 18s was my Acura legend that had Toyo Proxes...and it certainly didn't hydroplain like this. Every time I hit a part of the highway where the water isn't draining properly, ie super shallow puddles in low spots and the sunken dips from the tire weight of the traffic, it caught me off guard. Does anyone else agree with me? Perhaps it's the Dunlops? Thanks!