1. Increased air resistance: The sail net will increase the air resistance when the car is running, which may lead to an increase in fuel consumption.
2. Temperature problem: the sail net will block some airflow, which may affect the cooling effect of the engine and cooling system, and then affect the running temperature of the car.
3. Safety: increasing the sail net may hinder the driver's vision and increase the driving safety risk.
To sum up, I don't recommend adding a sail net above the hood. If you need to protect the car from the sun or dust, it is recommended to choose a cover made of suitable materials specially designed for the car and use it according to the instructions.