At the same time, due to the high RPM and high-efficiency characteristics of the race engine, the demand for air intake is extremely high.
Cold air and high oxygen content air will enhance the combustion efficiency of the engine, unleashing more powerful kinetic energy and faster speed.
Once you hit the "exhaust" of the car in front, this is what is called "dirty air" in F1, where waste heat and high temperatures can affect the power of the car behind and reduce cooling efficiency.
If the car is caught in a pack "train", and you can't overtake, always consuming exhaust.
Then you can choose to pit directly, switch to new tires, and get out to clean air, theoretically improving lap speed by one to two seconds!
Use this one to two seconds of lap advantage to quickly close in, and when the opponent pits and comes back out, they'll find themselves inexplicably behind, completing the position exchange.
This tactic is called "undercut."
