I've always been a fan of Bristols.
(Fnaar, fnaar!)
One for the 'very rare sightings' list, though.
I saw a few near the Chiswick roundabout - possibly cos the service department is near there, and one was always parked on the slip road by Richmond Bridge, but apart from that, can't recall seeing one on the road.
One of my customers had a Bristol, he never let me tune it though (funny that!) although I did repair the speedo on his Mini (and what a firkin job that was)