When drivers are on an empty track or are clear of their rivals, they’re racing in what they term ‘clean air’. This is the optimum state for a Formula 1 is the pinnacle of open-wheel, single-seater car racing and arguably the highest level of any motorsport globally. Also... There's more... car’s aerodynamics. As air passes over a Formula 1 car, it produces a wake of turbulent air behind that hampers the Aerodynamics is the science of controlling how the air behaves as the car cuts through it at speed. F1 cars... There's more... flow of cars directly behind it.
The following car loses Downforce is a measure of how much vertical aerodynamic load is created by a Formula 1 car’s aerodynamic surfaces. The... There's more..., making it slower in the turns, as well as making the engine cooling less effective. So, drivers always try to avoid running behind rivals, and hunt for ‘clean air’ where possible.