whadya call a group of mustangs??

[Pedro_The_Swift]

A "clip"

http://www.blogsmithmedia.com/www.autoblog.com/media/2007/11/1bullittfirstdrive1.jpg

[Bigbjorn]

Next question. What is the collective noun for a group of prostitutes? There are at least three.

[harry]

a layer of whores?