Believe it or not, I had that exact same thought. I was thinking the same exact thing about the window decals - the reason I didn't do it, and I still may actually since it seems to stand out, is because every car has it and I feared people would be like "Oh, photoshopped - fake." I'll go ahead and edit it out.
And yes, she was INCREDIBLY thin. She posed really well and took direction quite well too.
If you count the background light, this was a three light setup - key (her left), kicker (her right, slightly back) and bg light, with a large bookend to her right.
Also this was my first shoot with my new softbox, a 6 foot photoflex. I was soooo happy to get rid of that POS alienbees medium octobox I was using, it was so bad about producing hotspots and stuff. Plus I was always lowering and raising it, this one I can almost leave alone as a key light after positioning it since it's so tall.
I'll repost the edited car shot. Oh and also I did get a low-key shot of her, I'll post that one later. I'm not at home right now. OH and her name is Brandy lol - not Brandy. NOt sure how to edit the title of a thread.
Thanks for looking.