Two-plate cars are common in Hong Kong and Macau, China’s two former colonies, as business owners and staff frequently cross their respective borders to work in neighbouring Guangdong Province.

With its opening as the world’s longest sea crossing, the Hong Kong-Zhuhai-Macao Bridge (actually a bridge with an undersea tunnel for one section) now allows cars from Macau to easily visit its fellow former colony. The result is some cars now boasting three number plates.

From top to bottom:

Macau (its home)

Guangdong Province (special plate denoting the vehicle’s Macau origin)

Hong Kong (the special prefix “ZM” created for Macau visitors enabled by this bridge)