flaps: there are these things called highways... sometimes they fall between your current location and your final destination hopefully the car makes it!
sound system 7.5/10 its solid - sounds good for everything.. lack of bass pulling score down to 7.5
road noise to me was high but not unbearable... im used to driving an audi S4 though. I found myself needing to change the volume a lot pending on speed for everything (radio, phone calls on bluetooth, and the navigation)
highway at 80+ i was switching the bluetooth off and just using the phone for calls