BPAN is a slang abbreviation for «No Car Without Lowering» (a translation of «Без Посадки Авто Нет»). It’s a subculture in Russia related to car tuning: its members deliberately lower their vehicles’ suspension (reduce ground clearance to a minimum) to emphasize style and stand out. This often goes hand in hand with a specific car styling aesthetic and online communities on social media. In short: BPAN = lowered cars as part of car culture.
TANK_17 - the wheels.