I'd call fan made. Their real concept art isn't shown with a background unless its just a generic showing of how the character may move of a promotional point to show the directors.
It's fan-made. There are several clear indicates, like the lack of robot armour among car shell peices. Someone went to great lengths to make it real, though, and did a good job.
This thing is fan made AND is been on the net for a long time. Still looks cool tho, haven't seen it in awhile.
Yeah, this has been out before the first movie was out. I actually don't like it much, except the head.
that image has been around on the internet for a few years. I remember seeing it not too long after The first transformers movie came out, on superherohype forums.