It's an issue in China. As an anti-congestion and anti-smog measure, Beijing has rules which rotate the vehicles permitted on the roads according to the plate n

It's an issue in China. As an anti-congestion and anti-smog measure, Beijing has rules which rotate the vehicles permitted on the roads according to the plate number (for example, on Fridays a vehicle whose number ends in 5 or 0 cannot be driven). And of course some people don't want to follow the rules, so they develop all sorts of ways to try to temporarily change their plate to one that's allowed to drive.