Just finished this one that I started yesterday afternoon. The picture I discovered was one of the best I've ever seen by way of automotive photography and I fell in love. Anyway, this is the somewhat new SLR 722 Limited Edition which looks pretty damn good. I spent about 15 hours on it and used a 0.5mm and 0.7mm mechanical pencil as well as the usual smudger stump things.
My scanner made this look like a piece of garbage so I had to adjust some tones and whatnot, but it still isn't nearly as good looking as the original.
The only problem I have is with the front tire...it didn't work to my liking at all, but anyway, here she is...!