Red Bull holds the record for that fastest pit stop in F1 racing 2.05 seconds. The reason that F1 pit stops are much faster than other motor sports are for 2 reasons. The first being that you aren't allowed to refuel, and the second is that F1 racing allows for a bigger pit crew. The bigger pit crew allows you to do more for example changing all 4 tires at once. The above video shows the crew in action.