The Rover P6 was produced in various guises and trim levels from 1963 to 1976. Engines ranged from 2000cc to the mighty 3.5 litre V8s.
Popular with the police, there aren't many British TV cop shows from that era, such as The Professionals or S.W.A.T, which don't feature one or two Rover P6s somewhere on the screen. Probably best-remembered is the battered example driven by Bill Maynard (also of Oh No, It's Selwyn Froggitt!) in the opening credits of The Gaffer.
You might not know it, but the P6 was a car of firsts - first ever European car of the year and first car ever to run on radial tyres. It was ahead of its time, if you ask me.