Silver Spur, if I remember correctly.
A mate's dad had one when I was in my teens. Piece of junk it was too - regularly broke down. And whenever it did the dealer sent a covered truck to recover it as it was considered bad publicity to see a Rolls on a recovery truck!
Well done, there was also a Silver Shadow and Silver Cloud lll in the first one. That car really motors on set, I can imagine RR not wanting to advertise from the back of a low loader.
Yup. They always sent a Rolls branded curtain sider.