sweet car. I have a 2007. Love this body style.
About the road noise, like most people said, these cars are loud. It would help if you have a music turned on so you wouldn't hear the road noise as much
Is the "Whistling Noise" you are talking about more like a whining noise when you let go of the gas and keep it in gear? If so, this is completely normal.
About the DCCD settings, mine does the same thing. When in auto, when I start moving (1st gear or reverse) and make a sharp turn, rear tires skip... Seem like they shouldn't but I am guessing it's normal, or to be exact they are designed that way (it is locked at that point). I still would like someone to confirm this though.
lastly, beautiful car you got. Treat her well and she will last on you