main Unit 3 Traffic 2012Part A Section A Pre-listening- Background Information Pace Car In motorsport, a pace car or safety car is a car which limits the speed of competing cars on a racetrack in the case of a caution period such as an obstruction on the track. During a caution period the pace car enters the track ahead of the leader. With few exceptions, competitors are not allowed to pass the pace car or other competitors during a caution period, and the pace car leads the field at a pre-deter