Ive always had a hard time interacting with people. I always thought it was cuz of my hearing loss. Could I have Asperger? I have fanantical interests in cars.
Okay, so I'm coming in a bit late, but i'd like to add a few thoughts of mine. I don't know if the OP has Aspeger's -- i"m not a psychologist or anything. But I can say that being shy (or antisocial) and being obsessed with stuff like cars doesn't mean that you have Aspeger's. It's normal to have an obsession with something, as long as it doesn't take over your life.
But having said that, I've dealt with a few people who appear to have Aspeger's syndrome. (I don't know if they actually have that or were even diagnosed, but they were so *out there* and practically textbook cases that I'd be surprised if they didn't have it.) The thing is, these people seem to have normal or higher intelligence at first glimpse, but as you get to know them better, you notice that they have a *BIG* problem with social aspects of life. This is kind of hard to explain...for example, they can't read social cues and tend to say wrong things, which make them seem self-centered or even downright dumb. It's as if they are "social-blind", if that makes sense. Often, they have problems making friends due to this. A normal twelve-year-old kid would have more social sophistication than a 30-year-old with Aspeger's.
In college back in 80's, there was a quiet boy who was very bright and taking advanced mathematics. But he was throwing off a MAJOR "geek vibe" that scared off many people. He wasn't trying to be antisocial or anything -- he had no problem approaching people -- but he was basically clueless about socializing. He had this weird habit of hovering around other people, even if they made it clear they didn't want to talk to him. For example, he stopped by my dorm to talk when I was cleaning out my dorm (it was the end of a semster, and I was in the process of moving out). After talking with him a bit just to be polite, I told him I needed to finish cleaning my room. To anyone else, that would mean the conversation is over, and time for him to leave. But this guy didn't take the hint -- he just stood and stood there in the dorm doorway, watching me clean, like he was watching television or something. That was really bizarre. A friend of mine wondered if this guy had some kind of brain chemistry problem since the guy was so brillant in mathematics but jaw-dropping dumb in some other apsects. (We didn't know what Aspeger's Syndrome was at the time -- this was back in 80's -- but many years later when I read about Aspeger's Syndrome, I realized in retrospect that must be what the guy had.)