He has to have his own type of "swag" but if he comes off as cocky or has his pants sagging...I''M OUT! BECAUSE THAT'T NOT CUTE. Showing you're confident without being cocky isn't hard. His apparence is the first thing I notice not to sound shallow because it's the first thing anyone notices when they look at someone. If you look good, I'll most likely will be eagger to talk to you! But know this, the first words that come out your mouth can determine if I walk away within the first second. Car doesn't necesssarily matter, unless your a gold digger. I mean if you drive a nice ride, and we like you, bonus for us. I don't like all those tattoos and piercings all over, why ink/hole up your body if its not meaningful. I judge by who your hanging out with, if your with a bad group of people, I'm going to assume your bad. Lastly, I'm mostly attracted to athletes, guys who keep themselves in shape are hot!
I approach guys based upon how I see them interacting with other people and their body language more than I do spurred by material objects. Specifically, I avoid starting conversation with guys who come off cocky and rude.
If I notice someone wearing something I think is really cool or have similar interest in, that's grounds for a compliment or a question regarding that. I have never approached a guy based upon what he was driving because I didn't notice cars until I started dating my current boyfriend.
I judge if someone's dressed really sloppy or outrageously preppy (I'm talking everything Hollister and some smothering Axe cologne).
Don't give a crap about his car :P
Personality IS most important, but I'll also admit to being put off by a guy's general attitude by making assumptions about his personality. I'm not often wrong about whether a guy looks "nice" or not. It's like it's in the way they sit and walk and talk. I have Douche Radar, haha. I know that sounds really judgmental of me, but it's also easy for someone to change my first impression of them, so no biggie.
The only time I judge is if he dresses like a gangster. Its such a HUGE turn off for me. He would have to prove through his actions and personality that he isn't everything associated with that style for me to change my mind. I don't care about cars much or how big muscle are or the like, it all about how he acts. He could be a model and I wouldn't even give him a second look if he was a jerk, or was arrogant.
I don't mind what he drives, as long as its not a giant whale-car like a family van or something. I do judge his clothes sometimes, like what shirts I like/dont like... I never really think "I hate that shirt he's wearing".
I mostly find that I am attracted to a guy who's neat and presentable. He has character and has some standards. his past actions and the time to get to know him. I don't know really it varies but looks are not as important as his core.