International brands led by Tesla are intensifying their efforts to compete with Chinese electric-vehicle (EV) manufacturers like BYD, as they showcase advanced intelligence and autonomous-driving technology to attract visitors at the world’s largest import-export trade fair in Shanghai. The 12 major carmakers, including General Motors and Volvo, are leveraging the China International Import Expo (CIIE), which runs through Monday, to promote their latest models featuring longer ranges, enhanced...