This BTR-80 is not the standard one (GAZ-5903) but the
GAZ-5926 aka BTR-80M with the YaMZ-238M2 engine. This version has a different engine deck and because the YaMZ engine is bigger than the original KamAZ engine, the hull is slightly longer. This is visible on this picture from our friend Vitaly Kuzmin: note the bigger gap between the rear wheels.
Back to bottling my Grenache