Currently, the globally recognized high-performance automatic transmissions include Germany's ZF 8AT, Japan's Aisin 8AT, and Hyundai Powertech 8AT. ZF 8AT is renowned for its 0.1-second ultra-fast shifting and million-kilometre durability, making it the first choice for luxury brands like BMW. Aisin 8AT, leveraging the third-generation DirectShift technology, achieves a 40% reduction in shift shock with a failure rate of only 0.8%, and is widely equipped in family cars such as the Toyota Camry. Hyundai Powertech 8AT combines a 93% transmission efficiency with a 30% advantage in maintenance costs, and is suitable for 150,000-level models like the Sonata. When considering cost-effectiveness, Great Wall's 7DCT, with a 95% transmission efficiency, meets the off-road needs of SUVs, while Toyota's DirectShift-CVT achieves optimal fuel economy through continuously variable transmission technology. It is best to experience the shifting logic and power matching performance of different transmissions through test drives before purchasing a car.