Which concept increases cornering grip and how is it achieved?

• A. Downforce increases cornering grip via wings, diffusers, underbody tunnels, and ride-height/angles.
• B. Drag increases cornering grip by creating airflow.
• C. Lift increases cornering grip by raising the car.
• D. Turbulence increases cornering grip through rough air.

Answer: (A)

Cornering grip comes from the tires pressing harder against the road. The more downward force (normal load) on the tire, the higher the friction limit the tire can develop, allowing you to push laterally in a turn without losing grip. Aerodynamic downforce is how race cars gain that extra downward push. Front and rear wings generate downforce as air flows over them and is deflected downward. Diffusers and underbody tunnels accelerate air underneath the car and create a low-pressure region that effectively sucks the car toward the road. Fine-tuning ride height and suspension angles helps maximize this downforce and control where it acts, so more of the load benefits the tires in the corners.

Drag is the flip side of producing downforce; it adds resistance but doesn’t directly increase grip. Lift would reduce grip by decreasing the normal force on the tires. Turbulence, while it can affect airflow patterns, is not a primary mechanism for increasing cornering grip in this context.