How does the Audi A2's innovative space frame contribute to its lightweight design?

I am considering purchasing an Audi A2 and have heard about its unique space frame construction. Can you explain how this design element works and how it helps with the car's overall weight reduction?

The Audi A2's space frame is an innovative design that uses aluminum instead of steel, resulting in a significantly lighter car. This not only improves fuel efficiency but also allows for better handling and performance on the road.

The space frame construction of the Audi A2 means it has a higher torsional rigidity, resulting in a sturdier and safer car. Additionally, the use of aluminum instead of steel reduces the environmental impact of manufacturing.