The turbo whine is indeed very faint, but at full throttle, it sounds almost exactly like the wail of a closing police siren. Of course, that could just be my paranoia at work, since so much of my time in the 3-series is spent above the speed limit. As others have noted here and in every other 3-series article, the car is damn near perfect. My only complaint has to do with something German engineers are likely not very attentive to: short people. When I scoot all the way up in the coupe to reach the clutch pedal, I find my forehead uncomfortably close to the windshield. This isn't an uncommon problem in manual transmission coupes, I've found, but most of them have other faults I can focus on.