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

I'm considering purchasing either the Audi A1 or A3, but I'm unsure of the main differences between the two models. Can someone provide a breakdown of the key features and specifications to help me make a decision?

The Audi A1 and A3 are similar in terms of overall quality and design, but they differ in size and performance. The A1 is a compact luxury hatchback, while the A3 is a more spacious and powerful sedan. If you prioritize a smaller and more maneuverable vehicle, the A1 may be a better choice for you.