港股新能源汽车概念股走低，小鹏汽车跌超5%

Group 1 - The core viewpoint of the article indicates a decline in Hong Kong's electric vehicle (EV) concept stocks, with notable drops in share prices for several companies [1] Group 2 - Xpeng Motors experienced a decline of over 5% in its stock price [1] - Seres saw a drop of more than 4% in its share value [1] - Other major players in the market, including BYD and NIO, also faced declines in their stock prices [1]