The road noise is nothing the bose stereo can't fix, the Z is a lot more engaging than the bmw, like sports car supposed to feel. I came from a 05 bmw 530 and it was like I stepped into my old 240 with all the upgraded goodies. I'm a Z guy coming back made me realize what I was missing driving a bmw. Don't get me wrong I'm a bmw fan also but I'm stuck on Z's.