Chinese Tesla challengers Leapmotor and Zeekr, banking on their latest battery and self-driving technologies, bucked a downward trend in domestic electric vehicle sales with record deliveries last month, ratcheting up pressure on the US carmaker amid weak consumer sentiment towards big-ticket items. Stellantis-backed Leapmotor delivered 93,376 electric vehicles (EVs) last month, up 94.5 per cent year on year, as it rewrote its sales record for a second consecutive month. Zeekr, a premium EV unit...