The K1A1 is designed for Korea’s mountainous land. It provides a smoother ride as well as higher speed driving on a sloping hill, compared to the K1. The maximum speed is around 65km/h on the level ground, 40km/h on the mountains. Its fire control system involves KCPS (Korea Commander’s Panoramic Sight), KGPS (Korean Gunners Primary Sight), digital ballistic calculator, and some minor factors. The notable fact is that the development of this system was mostly done by Korean technology.