The Snowcat is a vehicle that Lara takes back to the Siberian Wilderness in the Expedition Mode of Rise of the Tomb Raider. It breaks down and Lara has to continue looking for Relics and Artefacts on foot, all the while trying not to starve or freeze to death.
The Snowcat seems to be an older model, maybe taken from the Soviet Installation, although it does look somewhat similar to the snowcats used by the Trinity soldiers. It is red and has a Strongbox on its loading space. Its right continuous track is broken.