Malcolm,
you be right, the FIM call the SoA and the SMI "cyclecars" - the defnition means - motorcycles with sidecars had to be called "cyclecars" when there are two wheels not in line so as a normal motorcycle - I think only to Rolf Biland "Sidecar" which he used in the FIM world cahmpionship in the 80's.
SMI certification. This is an American timekeeper certification which is signed also by a FIM official - so it's typed under his signature.
Craig Breedlove 407 mph record with the SoA will stand for ever so in the record book, also due to this that the FIA certified his later two records he set with the Three Wheeler. Why FIA changed there mind, we (Ugo Fadini, Stan Goldstein and myself) never found it out.
By the way, Rocketman Brown was not the first one who got the rights to run under FIM with thrust power - Art Arfons and his Green Monster No. 27 was in the original configuration a jet engine (from a F5) powered streamlined motorcycle. When I was at his place in the 90's he told me that he got originially the idea to run FIM and that the FIM gave him the okay that they would take care for him when he would be ready to go. It never happened after he done his famous lift off - after this jump he reworked the Green Monster to a four wheeler.
Max Biaggi is on the list but hard to find.
Nardo was used in the last 30 years for long distance records and long distance/high speed test of the car companies. The Mercedes C111
diesel records was set there, the last big and successful record attempt was done by VW with a W12 sportscar - they set hours and long distance record. Due to a repair stop the 12 hours record was slower than the 24 hours - VW done some weeks later another attempt to "correct" this successful.
Some weeks ago a streetlegal Porsche (from a tuner) set a speed of 241 mph.
Nardo is in the deep south of Italy, very similar as the Laredo test track in Texas, the only different is, that Nardo is a high bend and Laredo is flat.
See ya