It seems like you might be referring to the term "atmosphere." The atmosphere is the layer of gases that surrounds Earth and other planets. It is crucial for supporting life, providing oxygen, and regulating temperature.
Tyre grip, downforce, brake wear, driver reflexes, track conditions, car weight, atmosphetic pressure.....the list goes on
Condensation is the process by which a gas changes its state to become a liquid. Evaporation is process by which a substance changes from its liquid state to its gas state by random particle movement.