Thank you all...
I've bought this kit as a second hand item from a well known hobby shop in Ankara. The price was good, even better as it was second hand. In general the kit is typical for Zvezda, for the ones who like to use needle files. However this one has some nicely molded tiny parts that does not exist in Tamiya's kit, like connections with wing nuts. I cannot say that Tamiya's 13/40 has errors but it may be representing a later period vehicle. The most problematic part of the kit was the decal sheet and the tracks. The white numbers on it was not white exactly. But these were rather yellowish in color. That was what I was familiar to, from the old kits of course... But when I intended to slide them to their places I met another surprise. Each decal seperated into two or three pieces alhough I've did nothing wrong to damage them. I've brought them together like a micro-puzzle on their places (thanks god I had not so many of them), and then painted on the cracks between the decal pieces with Revell matt white acrylic paint which has the same yellowish color. The blue-white striped squadron insignia was not provided on the decal sheet. I painted it on the turret by masking. So if you are thinking about getting busy with this one, try to find better decals.
The vinyl tracks are not bending so easily, and so tight that, it stresses the road wheels and return rollers which may easily lead to unwanted things. While trying to fix them to their places, the track bands snapped off from their riveted connections. I used the same type of tracks from Italeri's Semovente, but they snapped off too. Driven mad, I've ordered Friul's tracks, which were more expensive than the kit. But I can say that Friul's tracks are the best that I had ever used. Metal, heavy looks and feels like the real thing.