Viktor Orbán is probably breaking out the champagne in Budapest.
BYD's profit margin in EU is 45% higher than China, but with the latest tariffs they will be paying existing 10% + additional 17.4% = 27.4% that will eat into profits. EU accounts for 38% of China's EV exports so BYD cannot afford to lose the market. To get around the tariffs BYD need to produce their vehicles locally and will setup shop in Szeged, Hungary.
European car makers have lagged behind Tesla and BYD in EV tech and through import tariffs, they will force BYD and other China auto makers to setup shop in EU with tech transfers. This include auto parts like EV batteries and, where is CATL setting up another battery factory... in Debrecen, Hungary.
As for Berkshire Hathaway... Charlie Munger paid about $1/share for BYD stocks in 2008? Buffett is happily cashing out at $60/share.
Time to load up more BRK-B.