Why is the Audi A2 considered a pioneer in aerodynamic design?

I have heard that the Audi A2 was the first production car to have a drag coefficient less than 0.3. Can you explain why this matters and how it impacts the car's performance?

The Audi A2's revolutionary aerodynamic design allows for improved fuel efficiency and reduces wind noise while driving. It also helps with handling and stability at higher speeds.

With a drag coefficient of just 0.25, the Audi A2 is able to cut through the air more efficiently, resulting in less drag and better overall performance. This design also helps reduce turbulence and improve stability while driving.