mountain-pass street race
Refers to an illegal or informal car race held on winding mountain roads, often associated with drifting and street racing culture.
On weekends, more street racers gather for mountain-pass battles.
That manga is based on mountain-pass street racing.
Compound of 峠 (mountain pass) and バトル (battle, from English). The term likely emerged from Japanese car culture and manga/anime depicting illegal street racing on mountain roads.