how much of it is LOOKS(http://www.autoadmit.com/thread.php?thread_id=3959832&forum_id=2#35919412)
a lot of it is aesthetics: thin and elegant frame, long legs. grace, balance, agility and coordination as well. (http://www.autoadmit.com/thread.php?thread_id=3959832&forum_id=2#35919849)