i think the blue one is just an "artists' interpretation" by Automobile's house artist, not by any Ford people.

note the signature on the drawing, which is also on the ford truck, the miata, and all the other sketches. also note that the sketched cars all have the EXACT same flared five-spoke wheel design and red calipers (ok, at least he threw in some slots for the mustang). lazy artist.

the other way you can tell: ford would never produce anything that handsome.