Bobsleigh is a not very known but dangerous sport. It consists in teams between 2 and 4 people that ride in a "sleigh" through a track of approximately a kilometer-long, normally in the snow. The vehicles can reach a speed of  200 km/h. First, the team, with 1 or 2 members inside the sleigh, push the vehicle to reach a considerable speed and then they jump into the sleigh. Objetive: The objective is to complete the track in the shortest possible time, so the winner is the team that completed the track in less time than the others.