What is the difference between an Audi A3 and A4?

I am planning to buy a new car and I am deciding between the Audi A3 and A4 models. What are the main differences between these two models in terms of performance, features, and price?

The main difference between the Audi A3 and A4 lies in their size and price. The A3 is smaller and more affordable, while the A4 is larger and more expensive. However, the A4 comes with more advanced features and a stronger engine option compared to the A3. If you are looking for a compact and budget-friendly option, go for the A3. But if you prioritize luxury and performance, the A4 is the way to go.