Some race cars [1] put fans under the cars, sucking upward. This effectively created a vacuum under the car and allowed it to stick to the road pretty well. It

Some race cars [1] put fans under the cars, sucking upward. This effectively created a vacuum under the car and allowed it to stick to the road pretty well. It was more for cornering fast than straight-line acceleration. But modern race cars to use aerodynamic tricks to create downforce, but only to keep the car on the ground at high speeds. 1. https://jalopnik.com/brabham-bt46b-fan-car-making-lemonade-from-lemons-5442597 https://jalopnik.com/brabham-bt46b-fan-car-making-lemonade-f...