Introduced 1966 as the Silver Shadow Convertible (and the first R-R to be designated a Convertible by Crewe rather than a drophead) it was rebranded Corniche in 1971, and went through to 1996. It had detail changes to styling - impact bumpers mainly - a new front suspension design in 1977, a revised rear suspension some time in the 80s, and of course endless detail revisions.
The Silver Shadow design itself lasted about the same time, if you regard the Spirit of 1980 as a major restyle, which it was. Same platform as the last Shadow, lower wider body, even the same dashboard at first. 1965-1997. Not a bad trot for one basic design. The Seraph of 1997 was pretty much a new platform as well as a new body.
As an aside, a guy in the UK actually sprinted a heavily race-modded Bentley Turbo . . . and if you can believe Wikipedia, the Bradford twin engine was sidevalve to the end.
Edited by Terry Walker, 23 December 2010 - 09:22.