Yes, it is the very 20/25 that was used in an Avengers episode. We believe coachwork is by Woodall-Nicholson. Now track it down and let me know how much they want for it.
'We' is the classic hearse register of which I'm a member (surprise). The car was much debated there. It was used in several movies/tv series in the late 60s/early 70s and we therefore doubt it got scrapped. It must be somewhere. We were never able to put a year on it and Woodall Nicholson unfortunately didn't keep records. Is there a pic anywhere that shows the license plate?
There's a slightly different hearse in one of the Avengers series (The Murder Market), it is a Phantom II, chassis 23TA, reg'd BLX20. It was removed and replaced with a more "commercial" boat-tail tourer. I think this hearse is a 40/50HP not a 20/25HP.