I remember feeling like that when I was about your age (I'm 40 now). My parents were good enough to provide me with a running car (a 1984 Cavalier) but I wanted the cool car, the bad ride, the boy magnet. I wanted tinted windows and a loud stereo and fog lights. I didn't get it, but I was still proud and thankful to be driving some sort of nice, clean, well-running car that didn't get me laughed at.
The bad news is that your parents owe you absolutely nothing at this point in your life. It's all gravy if it's coming from them.
The good news is that this is just a phase. As you mature, you will begin to focus on other things that will make feeling "comfortable" in some kind of car or another seem trivial.
I am bound and determined to learn to knit socks, no matter how long it takes!