Recently, there have been reports that the Japanese Prime Minister may announce his resignation this month, and this news immediately triggered a chain reaction in the financial markets. The exchange rate of the yen against the US dollar rapidly fell to 147.20, indicating investors' concerns about changes in Japan's political situation.

At the same time, the United States announced that the automobile tax and overall tariff on Japan will be reduced to 15%. This policy adjustment has brought good news to Japanese automobile companies, leading to a significant rise in related stock prices. However, this change has also posed new challenges for the Japanese automotive industry.

With the reduction of tariffs, Japanese and German car brands produced in the United States will gain a stronger price advantage, which may pose a strong competition to cars manufactured domestically in Japan. Japanese domestic car manufacturers will have to face this new situation and may need to adjust their production and marketing strategies to maintain market competitiveness.

These changes not only affect Japan's automotive industry but also reflect subtle shifts in the global economic landscape. The Japanese government and businesses need to closely monitor these developments and make corresponding policy and strategic adjustments to cope with this challenging new era.