Six of seven major Japanese automakers (Toyota, Honda, Nissan, Mazda, Suzuki, Mitsubishi) posted strong Q2 2025 earnings growth, driven by a weaker yen, robust demand in North America and Japan, and a global tariff reduction agreement. Toyota's net profit surged 75.6%. However, Middle East tensions have disrupted supply chains and logistics costs, with Nissan revising impact forecasts upward by ¥5 billion. Long-term sustainability depends on managing geopolitical risks and competing with Chinese EV makers.