People attend a vintage race car show organised by a German auto club in La Condamine, Monaco, Feb. 16, 2019. Car owners in the auto club showed dozens of different vintage race cars in Monaco to express their passion about motor vehicles. (Xinhua/Zheng Huansong)

People attend a vintage race car show organised by a German auto club in La Condamine, Monaco, Feb. 16, 2019. Car owners in the auto club showed dozens of different vintage race cars in Monaco to express their passion about motor vehicles. (Xinhua/Zheng Huansong)

People attend a vintage race car show organised by a German auto club in La Condamine, Monaco, Feb. 16, 2019. Car owners in the auto club showed dozens of different vintage race cars in Monaco to express their passion about motor vehicles. (Xinhua/Zheng Huansong)

People attend a vintage race car show organised by a German auto club in La Condamine, Monaco, Feb. 16, 2019. Car owners in the auto club showed dozens of different vintage race cars in Monaco to express their passion about motor vehicles. (Xinhua/Zheng Huansong)

People attend a vintage race car show organised by a German auto club in La Condamine, Monaco, Feb. 16, 2019. Car owners in the auto club showed dozens of different vintage race cars in Monaco to express their passion about motor vehicles. (Xinhua/Zheng Huansong)

People attend a vintage race car show organised by a German auto club in La Condamine, Monaco, Feb. 16, 2019. Car owners in the auto club showed dozens of different vintage race cars in Monaco to express their passion about motor vehicles. (Xinhua/Zheng Huansong)

People attend a vintage race car show organised by a German auto club in La Condamine, Monaco, Feb. 16, 2019. Car owners in the auto club showed dozens of different vintage race cars in Monaco to express their passion about motor vehicles. (Xinhua/Zheng Huansong)

People attend a vintage race car show organised by a German auto club in La Condamine, Monaco, Feb. 16, 2019. Car owners in the auto club showed dozens of different vintage race cars in Monaco to express their passion about motor vehicles. (Xinhua/Zheng Huansong)

People attend a vintage race car show organised by a German auto club in La Condamine, Monaco, Feb. 16, 2019. Car owners in the auto club showed dozens of different vintage race cars in Monaco to express their passion about motor vehicles. (Xinhua/Zheng Huansong)

People attend a vintage race car show organised by a German auto club in La Condamine, Monaco, Feb. 16, 2019. Car owners in the auto club showed dozens of different vintage race cars in Monaco to express their passion about motor vehicles. (Xinhua/Zheng Huansong)