How does the Audi A2's aluminum space frame compare to traditional steel frames?

I've heard that aluminum space frames can be more lightweight and rigid, but are there any disadvantages compared to steel frames?

Audi's aluminum space frame technology is indeed lighter and stronger than traditional steel frames, making it a popular choice among car manufacturers. However, aluminum frames can be more expensive to produce and repair.

While aluminum space frames offer better fuel efficiency and handling due to their lightweight nature, steel frames may be more suitable for rougher driving conditions as they are more durable and can withstand impact better.