"He who marches out of step hears another drum." ~ Ken Kesey
Unfortunately, the question is a little general for a specific answer..There are alot of great car illustration tutorials out there.But yeah, definitely check out Jeri's tuts. She rips.On a semi-related note, most tutorials can only show you how to twist a wrench.'art' or 'vision' or 'whatever' must come from within. Tutorials teach mechanics.Inspiration is much more illusive..02 for the topic.Cheers man.Hope you find what you seek.