Tesla is set to release its first-quarter earnings on Tuesday after the market closes – and the electric vehicle (EV) maker faces a reckoning from investors after a big sales miss. The company saw vehicle deliveries decline in the first quarter for the first time in nearly four years – falling well short of analysts' expectations amid a price war in China‚ where domestically made EVs like those from BYD have taken market share.  Tesla has responded with price cuts for its most...