Years ago, Ford made a 2.8L V6 that was German made then increased to a 2.9L. This was available in their Ranger and Merkur Scorpio domestically in the late 80's and early 90's. Then sometime later it was enlarged to a 4.0L engine. Is the current 4.0L that's available in the Ranger/Explorer the same one, or a direct derivative, of this older V6 German design??