I had one on a W plate. It was an ex police car with the IRS Nottingham calibrated clock and black door handles. I had this in 2003 and from memory come from Staffordshire.
When I worked for Peoples of Liverpool they obtained a few that apparently come from Ford cheap. They had no radio or leather Recaro seats (mine did) When sold the customer had the option of either take the car as it was or add the front seats and radio. These had Essex plates on as they had come from Ford and displayed EN prefix and not the M prefix that we used for Manchester.