A "three-axle" vehicle has three sets of wheels, each mounted on an axle. This design is commonly found in larger vehicles like trucks and buses, providing better weight distribution and stability. The additional axle allows for increased load capacity, making it suitable for transporting heavy goods. In terms of performance, three-axle vehicles often have improved traction and handling compared to two-axle vehicles. This is particularly beneficial in challenging driving conditions, such as on hilly terrain or during inclement weather. The extra axle also helps reduce wear on tires, extending their lifespan and enhancing safety.