The wheelbase of a car refers to the horizontal distance between the front and rear axles, serving as a core parameter in vehicle chassis design. It directly impacts driving stability, interior space layout, and power distribution. A longer wheelbase generally improves ride smoothness and comfort but may reduce maneuverability, while shorter wheelbases enhance agility for urban driving but may compromise rear space and high-speed stability. For instance, compact sedans typically have a wheelbase of around 2.6 meters, whereas luxury sedans or MPVs often exceed 3 meters to accommodate spacious seating. Additionally, wheelbase design is closely tied to suspension systems and powertrain configurations, affecting dynamic performance.