Carrozzeria Sperandeo built at least 2 barchettas.
One of them, was built from a Fiat 1100s MM berlinetta.
It's owner, nearly 40 years ago, discarded the (original) body (first picture) and built a new one, on the original chassis (second picture).
The old body was then mated to a new chassis and a new story was invented for it.
Falanga's family was not pleased to read it was named R.A.O.R. (they say they have the only existing R.A.O.R..that is another car) and the matter was brought to court.
The RAOR by Sperandeo in this puzzle is a modern creation, realized using an original Sperandeo body and a different chassis of unknown origin.