Peter - thanks very much for posting - a very nice thing you did
I know it, or rather knew it, very well as it my Dad's company car when new. Mark Britton (Loose Cannon) did some research into Rivieras and determined that this one was in the Len Street showroom in Chelsea and got sent back to the factory for the Riviera upgrades and then went back to Len Street where we saw it. I think we had it until 1984 only
I saw the car about a year ago at Lakeside Engineering and I think it is Henry that owns it now. He was doing it up and had it in a barn in Oxfordshire somewhere. In fact I think Mark might have gone to see Henry....and I am sure he would love the information.
If we can't get hold of him can I very politely suggest that maybe you could eave it with me or someone else for safe keeping until we can get it to him ? It would be nice to hold with the car.