What are the differences between the Audi A1 and the Audi A3?

I am struggling to decide between the Audi A1 and the Audi A3. Can you help me understand the key differences between these two Audi models?

The Audi A1 is a subcompact car, while the Audi A3 is a compact car, so size is the most obvious difference. The A1 is more fuel-efficient and better suited for city driving, while the A3 offers a more powerful engine and better performance on long trips.

The Audi A3 has a premium interior and more advanced technology features compared to the A1. If you value luxury and the latest technology, the A3 may be a better choice for you.