BBC News World Edition recently covered a survey of 25 top selling cars in the UK - and their horns. Apparently, the sound of the beep is becoming an important factor for shoppers when considering a vehicle, and that auto manufacturers are paying more attention to the relationship between a model's horn and it's perceived personality."
The results of this survey can befound at this link:
http://www.jamjar.com/sounds/horns.aspx :shock:
along with MP3s of each horn tested, measurements of loudness and somewhat vague "semiotic profiles" explaining the character of each toot.