One of the things that I think we all have to consider in aircraft requests, and please forgive me it isn't directed at Italian ACs, is that during WWII the Americans (no allies included) built over 250,000 planes. WWII was the afternoon of the aircraft in combat as opposed to WWI. This was the first serious demonstration of the power of Air Supremacy. An idea that continues without doubt to this day. A plane that had a total run in comparison equal to roughly 0.1% of the US production is so rare as to be unimaginably vague. 1000 US aircraft were built compared to the each of the various Regianne. This is without comparing all Allied/Axis plane production which would put the Regianne as being roughly on the order of 1:70000. Imagine this... for every single plane that you see either in your country or not 1 out of 70000 is a Regianne variant of which 1 out of 350000 is a plane that stands even a chance in everyday MA operations.
Yes I realize that the 262, 234, and 163s are also comparatively vague but these aircraft represent the Third generation of ACs. As such and considering that they were produced and flown in combat during WWII hostilities demonstrates the idea that they were important.
Biplanes and Zeppelins are Generation 1 the beginning.
Planes like the 190D9, P51D, and Tempest are the pinnacle of Generation 2. Which begins roughly speaking with the bf 109, Spitfire, and Zero. Note I didn't mention a US aircraft because the US Army laughed at the idea of aircraft playing any important role in combat.
Jet propelled aircraft Generation 3. ME 262s, AR234s, MiG15s, F117s.
For completeness sake I'll include the Dark Stars and Predators which are the dawn of Generation 4. The unmanned AC that human G force tolerance is not an issue in and hence the apex predator of non-terrestrial combat in Earth atmosphere.