I believe the only remaining VC
-10s still flying belong to the RAF and used as tankers. I believe all of them have a tan color paint, and of course the British military roundel.
So, I doubt it was a VC
-10 you saw today, it must have been an IL
Here is a picture of the grey livery on an Il-62 of FV.
also flies the Il-62, but I don't know what they look like.
There are about 25 Il-62s still flying for airlines/charters in the world today.