Passenger cars are classified according to the length of the vehicle: mini passenger cars-length less than 3.5m; light passenger cars-length 3.5-7m; medium passenger cars-length 7-10m; large passenger cars-length 10-12m; extra-large passenger cars-including There are two types of articulated buses (vehicle length greater than 12m) and double-decker buses (length 10-12m), such as the SK6141A3 articulated bus produced by Shanghai Bus Factory and the JL6121S double-decker bus produced by Nanjing Jinling Double-Decker Bus Factory. China stipulate... read full review »