Hey everyone, I'm curious- does anyone else have this problem? If I'm cruising on the highway and decide to push it up past 70, the car gets noticeably louder... The noises I'm hearing almost sounds like tire noise, but it's so loud I almost feel like some of the noise and vibration is coming from the engine too. I've heard others talk about the "groan"... but they seemed to describe it more on acceleration. This isn't hard acceleration per se, more just going faster... I do have the pano and 21" wheels... so I'm not sure if this is just normal or what?