The ETR 500 can be classified as a "bullet train" and they are used in the same fast Frecciarossa (red arrow) bullet train traffic as th the ETR 1000, ETR 600
and ETR 700 trains, but technically the ETR 500 is just two aerodynamically shaped fast locomotives with non-motorised, non-tilting "normal" express train
coaches in between. The tilting ETR 460, 470, 480 Pendolino trains were not suited for speeds of over 250 km/h, so Italy needed for its new bullet train lines
new, non-tilting fast trains for lines such as the Firenze to Roma line. The first ones entered service in 1995. They were built by Breda Costuzioni
Ferroviarie, FIAT Ferroviaria, Tecnomasio and
Firema Trasporti. There are monocurrent, bicurrent and tricurrent versions available, for 1,5 kV DC, 3 kV DC and 25 kV AC. This one is an ETR 500 AV, which
is a newer version, built since 2000 and which can run both with 1,5 kV DC as well as 3 kV DC. They were totally refurbished since 2012. Its top speed is 360 km/h.
Picture from Milano Centrale 7.7.2019 by Ilkka Siissalo.