The mighty 1/72 Polistil Tiger

I managed to buy a 1974 old Polistil Tiger tank at a flea market in very bad conditions as you can see from the pics. Also the gun barrel was missing. I got one from RB Model and refurbished the tank completed adding some Peddinghaus decals, among other stuff. The outcome looks fine with me, not being a rivet counter but the snag is that the tank looks bigger than the 1/72 scale. I have not measured it in reality but my impression is that it is way too big. As I stick to 1/76 scale this is a problem. If you compare it with an Airfix Tiger as shown in the pics it definetively looks much bigger, although the Airfix is closer to 1/72 than 1/76. Incidentally a Kfz 31 is pictured aswell