NOT SPITFIRES But they look the same

I have built a few Spitfire modes in my time however these two kits look like Spittys but are very much not so. In this video I compare the 1/48 Academy Spitfire, with a 1/48 Trumpeter Spiteful, plus a 1/72 ICM He 70 Blitz, and discover just what is the difference?