There is a set speed limit for every car, and whether there is traffic on the road or not, no individual can cross drive beyond that limit. To monitor the rate, some cameras indicate the speed for every car and penalty is imposed on people who break the law. However, Queen Elizabeth II is free to drive her car at whatever speed! She can exceed the limit while everyone abides. Her late sister, Princess Margaret did not have this privilege and once said that Elizabeth likes to drive pretty fast! Nowadays the Queen just drives around her estate.