Got it from the dealer today.
The back of the holder is lined with foam so it won't scratch the grill. It comes with two backing plates. One for the three bar grill and one for the aero and four bar grill. Super easy to install. You will need a 7mm socket to secure the locking nut. But you won't need the wrench. I just attached the socket to a extension piece and tighten by hand.
Now I'm just waiting for my Union Jack badge from Motoring File.