How does the Audi A2's Carbon Fibre Chassis Enhance its Performance?

I've heard that the Audi A2 has a carbon fibre chassis, but what does that actually mean for the car's performance? Is it just a buzzword, or does it make a noticeable difference?

The carbon fibre chassis of the Audi A2 provides significant weight reduction, resulting in improved handling, acceleration, and fuel efficiency.

Not only does the carbon fibre chassis make the Audi A2 lighter, but it also increases rigidity and stiffness, making the car more responsive and precise on the road.