if billy black sit's in a wheelchair how can he drive a car...???

I don't think that dear old truck has the technology needed for special people with leg problems. I don't know, but I think it was like a kind of editing error. But it was on purpose for us to see the complication Edward had.
Just look at their faces and then あなた can notice the complication between Billy and Edward.

i think あなた can get special cars for that i dont no if his realy in a wheel chair in real life i dont no i dont like him hes soo rude to everyone so im not a ファン of him!!!!

I'm fairly sure that in the 本 he doesn't drive himself but gets driven around によって other people; Jacob, Charlie, etc.

I think あなた can get cars for people with disabilities.

well he has diabetes and that's the reason why's he in the wheel chair... he's not a cripple (in the lack of a better word) and he can 移動する them a bit.. but he is not supposed to be driving and that's why ( in the books)sometimes jacob drives. and even if he can't 移動する his legs, now あなた have special cars which are made for that kind of people and everything is on his steering wheel =)

They probably explain is as he's not strong enough to walk, hence the wheelchair. あなた don't need nearly the strength in your legs to drive as あなた do to walk. That's just my 2 cents.

He deals with a lot. He becomes frustrated in this one a little bit because he gets this close all the time and then gets told 'no' over and over again. So it's quite a bummer, but he's persistent." And see him again in the movie anymore. But see him Bella 白鳥, スワン and the other ヴァンパイア to with him and the pack of wolfs too?
He is a 狼, オオカミ for you??

He gave the car away, so that means it would be no longer of use to him. Meaning, he didn't drive that car, it was his old one. I mean, If I were to be in a wheelchair, I certainly wouldn't give a way some new car I got?