The impact of sky-high costs for memory chips is spreading from smartphones to cars, as China’s electric vehicle (EV) king BYD announced a 21 per cent price increase for its high-end driver-assistance system. Starting on Friday, the price of the optional DiPilot 300 assisted-driving system would rise to 12,000 yuan ($1,757) from 9,900 yuan, BYD said on Tuesday, attributing the decision to “the sharp rise in global storage hardware costs”. The system, which allows cars to navigate themselves on...