How does the Audi A2's aluminum body reduce weight and improve fuel efficiency?

I've heard that the Audi A2 has an innovative aluminum body. How does this feature benefit the car's performance and overall eco-friendliness?

The use of aluminum instead of traditional steel for the car's body decreases its weight and allows for better handling and acceleration. But the environmental impact of this goes beyond performance. Lightweight cars also emit less CO2 and use less fuel, making them more sustainable in the long run.

The aluminum body of the Audi A2 makes it more resistant to rust and corrosion, ensuring that the car will last longer and require less maintenance and repairs.