Chinese electric vehicle (EV) assembler BYD has set its sights on Porsche’s supercars with plans to sell its Denza-branded new models in developed markets, the latest sign of its increasing heft in designing and manufacturing premium vehicles. The Shenzhen-based carmaker planned to unveil the Denza Z sports car featuring BYD’s self-developed intelligent DiSus body control ­system at the UK’s Goodwood Festival of Speed on Thursday, it announced in a statement. The European debut of the sports...