Buffett bought BYD in 2008, when BYD was going to produce an electric car and revealed the plan to Lulu. After rational reasoning and judgment, Buffett should think that this plan is reliable. Wang Chuanfu, who spoke from Lu Li, was also more reliable, so he voted for BYD. But there is also a very important factor, that is, the price of BYD at that time was cheap enough. At that time, the PE of $ BYD (0121) was only 3-4 times, which was really cheap! Cheap and with broad development prospects, it is Buffett's first choice!