What does Zr stand for in arctic cat snowmobiles?

In Arctic Cat snowmobiles, "Zr" stands for "Z R" and is part of a model designation that indicates a performance-oriented line of snowmobiles. The ZR series is known for its agility, speed, and advanced features, catering to riders looking for a more dynamic snowmobiling experience. The models typically emphasize a balance between power and handling, making them popular among enthusiasts.