Question

explain why cars are designed so the air pushes them towards the ground when they travel at high speed​

Answer 1

Answer:

Since the air pressure under the wing is greater than that above the wing, lift is produced. The shape of the Indy car exhibits the same principle. The shape of the chasis is similar to an upside down airfoil. The air moving under the car moves faster than that above it, creating downforce or negative lift on the car.