What is the main difference between the Audi A2 and the Audi A3?

I am considering buying an Audi, but I am not sure what the main differences are between the A2 and A3 models. Can someone explain?

The main difference between the Audi A2 and A3 is the size. The A2 is a compact car while the A3 is a larger, more spacious car. The A2 also offers more fuel efficiency and lower emissions compared to the A3.

Another key difference is the price. The A2 is generally more affordable than the A3. However, the A3 offers more advanced technology and features which may be worth the extra cost for some buyers.