Slow day at work, so did a google image search for "transformers jazz cgi" & found this thread, where user chris912 posted these renders on 07-19-2009: I've never seen these before, so thought I'd post them & they're the highest res pics I've ever seen of Jazz - even if they're not official. If you guys have seen these, go ahead & have a mod delete this thread.
Very cool. Wonder if he ever finished this. I looked through the 8 pages and didn't see much more, but no finished render.