A snowmobile, also known as a motor sled, motor sledge, skimobile, snowscooter, Ski-Doo, or snowmachine, is a motorized vehicle designed for winter travel and recreation on snow. It is designed to be operated on snow and ice and does not require a road or trail, but most are driven on open terrain or trails. Snowmobiling is a sport that many people have taken on as a serious hobby.
Older snowmobiles could generally be two people; however, most snowmobiles manufactured in the last 25 years have been designed to only one person. Snowmobiles built with the ability to hold two people are referred to as “2-up” snowmobiles or ‘touring’ models and make up an extremely small share of the market. Snowmobiles do not have any enclosures, except for a windshield, and their engines normally drive a continuous track at the rear. Skis at the front provide directional control.