I think you've missed my point. Also, I never said it was a disorder, however Aspergers is classed as a syndrome, hence the S in AS.
You can diagnose somebody with AS, because we have atypical neurology, which means it's not the typical neurology that the majority of the population have. You can't diagnose somebody for being the same as the majority of the Human population, that wouldn't make any sense at all.

Since my car analogy didn't work, how about something more Human? Take a transgender person for example, they are diagnosed as having a gender identity disorder because their own feeling of self identity is different to their outward appearance. Though there is no diagnosis for people who are not transgender because that's the typical presentation of our species.

And before you comment on GID being a 'disorder', many things that are diagnosable are not disorders, it doesn't make them any less diagnosable.