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

I am considering purchasing an Audi model, but I'm unsure about which one is the right fit for me. Can someone help clarify the difference between the A1 and A3 models in terms of performance, design, and overall features? Thank you.

The Audi A1 and A3 models may seem similar at first glance, but they have distinct differences that set them apart. While both models have a wide range of engine choices, the Audi A1 is known for its compact size and maneuverability, making it perfect for city driving. On the other hand, the A3 offers a more powerful engine and a spacious interior, making it a great choice for longer trips and families. Ultimately, it boils down to your personal needs and preferences.