Generally, a driver will leave the pits and drive around the track back to the start/finish line. This is called the "out-lap", and is not a timed lap. This lap often starts out at a slower pace to warm up the tyres. They will be up to full speed by the time they reach the start line. When they cross the line, they will try to drive the quickest time they can around the circuit. This is called a "flying lap" or a "hot lap". A driver may run several hot laps in a row. The fastest of these hot laps is used in setting the grid position. Finally, the driver will slow down and drive around the track. They re-enter the pit-lane on this "in-lap". If there is still time left, they may put on fresh tyres and try to set a faster hot lap.