Hillman Hutner MKIV in these scenes from The Gentle Touch TV Series, 1980-1984 Ep. 3.02. Images are from the almighty IMCDb. There was also a Hunter GLS featured in this series check it out in my other post.
Vehicle details for NRA 820P are:
Date of Liability 01/08/1984
Date of First Registration 01/05/1976
Year of Manufacture 1976
Cylinder Capacity (cc) 1725cc
Fuel Type PETROL
Vehicle Colour BRONZE