Wow! I still can't believe that only three were made! So for the o.p. with the 2 rail unit, I am waiting for delivery of my 3 rail unit....
It begs the question was the last unit (production of 3) a two or 3 rail? Inquiring minds want to know!
BTW, isn't this an E4 Demonstrator, not an E6?
Front "Lobster Claw" coupler and pilot came separate. Only the Rear has "Lobster Claw" coupler showing.
Cab interior Detail