Lotus Tech, which develops cars for the Lotus brand, is working on preliminary plans for an initial public offering in the U.S. or Hong Kong to help fund the transition of the iconic maker of sports and racing cars to an all-electric automaker. The company is studying a potential IPO as soon as 2023 if sales go well, Group Lotus CEO Feng Qingfeng said in an interview Tuesday. There’s also the possibility that Lotus Cars will list in the U.K., but no timetable has been set, he said. Lotus Tech, which broke ground on its global headquarters in the Chinese…