But, again, that's a non-trivial redesign because you have to find space within the wing for the wheels.
I'd like to know how many spars formed the structure in the P-35 wing. Apparently, the Re2000 had 5 spars which is unusual. If the P-35 has a different number of spars, it strongly...
Well, for starters, the Italians used a different aerofoil section in the Re2000 than was in the P-35. The former had an N-38 section while the latter had the Seversky S-3 section. So we're supposed to believe that the Italians couldn't build their own fighters but they were smart enough to...
But why take inspiration from a 4 year-old design? That doesn't make a lot of sense to me. Aircraft performance advanced rapidly from 1935 onwards so I struggle to see the benefits of copying something that, by 1939, was pretty much obsolete.
It rather depends on the quality of the source. There are plenty of sources that state the Zero was derived from an American design which, patently, is untrue.
I struggle to see how the Italians managed to achieve such a significant increase in performance if the 2 types are closely related...
Is there any established proof that the Re2000 was a copy of the P-35 (other than it being visually similar)? The Re2000 was 40mph faster and had a ceiling 5000ft higher than the P-35.