Vector Car

Illustrating cars is something that I try to avoid. I don't know why, but most of the time I over do it. This is one that I tried to keep simple but I'm not satisified with it. Does anyone (especially those who knowledge in this area) have any tips on what approach I should take. From initial line art to coloring?


The line work didn't take much time but the coloring and lighting are the areas where I have no idea of how to go about doing it.