At the close of his presentation at this year’s Auto China show, Li Fenggang, president of Beijing Hyundai Motor, surprised the audience by asking them to lift LED boxes placed on their seats.“We’ll use this beam of light to kick off Hyundai’s new journey in China,” he said, raising the device stamped with the logo of Ioniq, the new brand the Korean carmaker has just launched in mainland China.After years of lacklustre performance in the country, Hyundai was preparing to regain lost ground by...