This flawless Rover 2000 was parked across the road for a few hours. DLN indicates London North-West registration.
The P6, of which the 2000 was a variant, was produced from 1963 to 1977. This is a post-1970 model with the facelifted plastic grille. It was the Middle-Management Executive Saloon of its day. Most potent model was the 3500 with a V8 and good for 110mph.