He should, but yes you do misunderstand slightly.
Dad brought up the idea of him getting a car.
He's desperately wanted a car forever.
A car to him is like a computer to me. Necessary for "life".
However, dad has a habit of screwing things up (maliciously or stupidly) and Josh is deatly afraid of this falling through.
Especially since all his current plans revolve around him GETTING a car.