NANJING, CHINA - APRIL 30, 2026 - Tourists visit the BYD exhibition area at the Auto Expo in Nanjing, Jiangsu Province, China on April 30, 2026. (Photo credit should read CFOTO/Future Publishing via Getty Images) Cfoto | Future Publishing | Getty Images BYD 's passenger vehicle sales fell for an eighth consecutive month in April, while its domestic rivals Leapmotor and Zeekr notched record-high monthly deliveries as the market becomes more competitive. BYD reported Sunday that it delivered 314,100 new energy passenger vehicles last month — comprising battery electric and plug-in hybrid models — a 15.7% decline from the year before but up 6.2% from March, CNBC's records show. Export figures for BYD rose to an all-time high of 135,098 , according to a Hong Kong Stock Exchange filing — a record, and up more than 70% compared to the same period in 2025, according to CNBC's calculations.…