Test days exclusively open to professional racing teams and drivers (circuit racing license is mandatory).
Cars allowed: (A) GT, Touring, Prototypes & (B) Formula 4, Formula Regional, Formula 3.
Entry forms on kateyama.ch and then can be sent to .

Test days exclusively open to professional racing teams and drivers (circuit racing license is mandatory).
Cars allowed: (A) GT, Touring, Prototypes & (B) Formula 4, Formula Regional, Formula 3.
Entry forms on kateyama.ch and then can be sent to .