Funny Photos Site

What could possibly be so attractive about sticking your head out the window of a car that's moving at fast speed?
Social petworking site My Smelly has some interesting theories:
A) The more air passing through their nostrils the more powerful the smell sensation.
B) They feel happier outdoors rather than inside the 'stuffy' car.
C) Because it's fun.

Below are some pictures of high speed canines. See the full photoset here.