Have to agree with Peter Barron on this one.
During the fuel crisis in the early 70's late 60's I seem to recall a story (on Blue Peter ???) about the German Police complaining to Rolls Royce that it was inappropriate to be carryning out high speed testing on the german motorways when fuel was in short supply.
Rolls Royce said they were not testing any cars and the German police supplied a photo of the car clealy showing the "flying lady".
It was this that caused RR to track down the owner.
I stand to be corrected but I'm sure this is the car Dipole refers to.
CK