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 ,