You may be considering a 1-off test prototype that got a DB603 engine and was never a production model. Much like the US-tested Ki-84, the performance was quite a bit higher than actual war-time operations allowed.
That model with the higher engine was what the Luftwaffe were interested in when they looked into producing the G.55, but the inefficient design of parts and machine tools meant it took way more man-hours to build a single airframe than it did any of the German designs at the time, and they never pursued it after the fall of Italy.
P.S. I'd like to see an EWA bomber or two, either the G.50 or C.200 (nearly identical in performance and weaponry, so either/or), and some other designs to flush out the Italian planes a bit.
I'd love to see a Serie -0 version of the G.55 with a nose cannon and 4x 12.7mm all clustered in the nose (and synchronized), as well as a Serie -1 version, which ditched that loadout and put 3x 20mm and 2x 12.7mm because it was too hard to service the guns on the lower side of the nose. I'd love to see the C.200 for the sake of just using 90% of the C.202's existing model/shape and plugging a radial engine on the front. It would be like the P-47M in that it uses a lot of already-existing geometry. On the other hand, I wouldn't want a Macchi monopoly, so seeing a G.50 instead would be kind of cool just for variety's sake.
