Chinese electric vehicle (EV) makers, from bellwether BYD to start-up Dreame, have stepped up efforts to crack overseas markets as earnings prospects at home look dim amid vicious price competition.They are choosing to either assemble vehicles overseas or open more showrooms abroad to promote their smart EVs fitted with sophisticated in-car entertainment systems and high-performance battery packs, in hopes of taking market share from international marques like Volkswagen and Toyota.“Chinese...