I think it is easy to overlook the noise that a car radio can make in an open top car. You'd have to have the volume up pretty high when doing any speed, and it would still be loud when idling at lights. There is a particular junction in my town which is always noisy from car speakers, those poor residents. Of course its only the young tearaways doing it, you never hear any Mozart. And dont get me started on people with phones on trains.....
