Tesla's first-quarter deliveries were higher than BYD's 264,647 passenger BEVs, but lower than the latter's 552,076 NEVs, including PHEVs. The US EV maker delivered 422,875 units worldwide in the first quarter, up 36.39 percent from 310,048 units a year earlier and up 4.34 percent from 405,278 in the fourth quarter. Note: NEV=PHEV+BEV