Elon Musk would never have dreamed that, in just three years, Lei Jun would become Tesla's strongest competitor. In fact, as early as 2012, Lei Jun, the president of Xiaomi, visited Tesla's factory in Silicon Valley, where he had a pleasant conversation with Musk. Lei Jun test drove a Tesla and was deeply impressed. In 2013, Lei Jun visited Musk multiple times to learn from and consult with him. Starting car production in 2021, by 2024 he created the world's fastest, most powerful four-door production car that broke the Nürburgring world record, using Xiaomi's own developed large die casting technology, V6S, V8S, and the world's strongest motors. This speed of progress has caught Musk's attention.