Strange looking beast. Did anyone else know about NS rebuilding these? http://www.railpictures.net/showphotos.php?locomotive=SD60E
From what I have read, this is the "class" unit, but more are planned or in progress. It is rebuilt from a wrecked, spartan cab SD60 with an all-new cab supplied by a third party. The cab appears to have a full height nose door, and of course, the interesting "brow" (numberboards).
From what I understand, the prime mover has also been swapped out to a 710G3B-EC or some such. The EFI model that's int he 70M.