"走行性能" (zōkō seinō) refers to the driving performance of a vehicle, which includes aspects such as speed, handling, stability, and comfort. It is an essential factor for evaluating how well a car can operate under various conditions, such as on highways or rough terrains. Key elements of 走行性能 include acceleration, braking distance, and cornering ability. These characteristics help determine how a vehicle responds to driver inputs and environmental factors, ultimately affecting the overall driving experience. Manufacturers often test and optimize these features to enhance the performance of their models, such as トヨタ or ホンダ.