Terry
White Scout Cars were used extensively by the British Army by "Phantom" and "ASSU" Units
Phantom - GHQ Liaison Regt
http://en.wikipedia.org/wiki/GHQ_Liaison_Regiment
ASSU - Air Support Signals Unit
http://www.ww2talk.com/forum/signals...als-group.html
Am not sure it's a wirecutter on the front... given the aerial mast at the rear, I think the metal section on the front may be to support an wire aerial running across the top of the vehicle to allow them to transmit on the move... but more similar photos are needed to tell for sure.
Tim