Special feature designation at ARCTIC CAT. 3in1 designates a model variant with which it is possible is to make out of 1 base vehicle 3 different versions by means of different accessories. The customer can select between a large rack, a transportation box or a passenger seat, which can be exchanged by means of a patented quick-locking mechanism without any tool. The place for this alternating system results from the long wheel base of the models 400 3in1 and 650 H1 3in1.