Is there a difference between Chongming Island license plate in Shanghai and downtown Shanghai?

According to Sohu. Com, the license plate of Chongming Island in Shanghai is different from that of downtown Shanghai.

The license plate of Chongming Island in Shanghai is Shanghai R brand, which belongs to the third lowest version, that is to say, it can only be used in Chongming Island and cannot be used in other areas.

Shanghai is divided into Chongming license plate, suburban license plate and urban license plate. Chongming has a large and independent license plate, because Chongming Island is the only island municipal district in Shanghai. Chongming Island can use two kinds of local license plates, namely, Shanghai C and Shanghai R, where Shanghai C is a suburban license plate, and vehicles with this license plate cannot enter the S20 ring road in Shanghai, and the urban license plates are Shanghai A, Shanghai B, Shanghai D, Shanghai E, Shanghai F, Shanghai G, Shanghai H, Shanghai J and Shanghai K.