Christel Doctor Who of the Week - MARK 2?

In the ARNIE series 1 finale we meet the 'Mark 2" which is supposed to be a robot vastly superior to ARNIE. We also see a similiar robot in the 4th 2009 Christel Doctor Who Special, Endgame. Although it is unclear whether this robot is the Mark 2 or not it seems to be able to manipulate peoples visual cortex in the same way that ARNIE can. A fact proven by the fact that it convinced both the 10th and 11th Doctors that it was Rose Tyler. As of yet it remains unclear as to the true identity of this robot.

(See for yourself)

The MARK 2 in ARNIE S105

 The "Cyborg" in Endgame