Cars like this one?

or cars like your pic?
As for the first one, that was drawn in MS Paint, and some of the coloring was done in another free image editor.
As for the second one, Photoshop cannot draw quite like that (could get close, but not easily). Either Cad or Maya any of the 3D editors, I'm sure blender (free program) could do it if you got good. either get good with the free programs or spend $5000 grand and learn to do it on Cad or Maya.
Good luck,
Kevin DiGennaro
*edit lol I didn't actually click on the pic before, looks like it could have been done in PS, but Cad is still the way to go.