I am writing a review on the terrible Zvezda/Dragon BTR-80 kit and while I was watching Hungarian vehicles I have just found out that there is a noteable difference between the kit and the reality.
All the photos I took have an extra, fourth periscope to the left of the driver, and because of that, there were some changes made to the this area. Please have a look at these two drawings:


So I searched the web for more photos and most of them were like mine. But some were like the Zvezda/Dragon. I was wondering that maybe there is an early production BTR-80?
I have found some minor differences as well: tha shape of the front rubber "bumpers" (dot shaped for "early", block shaped for the rest), and the fuel hatches on the back open downwards on the "early", the rest is up and to the sides...
Any idea?
Thanks,
Adam