...after following a link on that page, I see the author acknowledges this in the more detailed page on Pendolinos. (It even details that tests were conducted on the first, pre-war Rome-Naples high-speed line I mentioned.) He puts the not at all insignificant ATP input thus:
After Britain abandoned the tilting Advanced Passenger Train, the tilting technology was sold to Italy, which was further developed along with existing Italian tilting technology and the result was a few years later in 1987 the emergence of the Pendolini ETR 450, a high speed tilting train. This simplified things, because, while the ETR-401 required a gyroscope and an accelerometer for each bogie, the ETR-450 had them only at the end-cars and the rest of the tilting mechanism was electronically activated on a master-slave basis.
A further, general point about tilting trains: why are there none in France?
The crux of the matter is that tilting trains go faster in curves is not because they cause less wear on rails. They don't. It is only because of passenger confort, because of unconfortable side accelerations. However, in France, the track-building norm was to raise the outer rail in curves much higher than in the rest of Europe, and permissible side accelerations felt by passengers were also greater. Thus, French trains already go at the higher speeds in curves. *Lunatic*, n. One whose delusions are out of fashion.
