What are the main differences between the Audi A3 and the Audi A4?

I am considering buying either the Audi A3 or A4. I want to know the key differences between the two models in terms of performance, design, and technology. Can someone provide a detailed comparison?

The Audi A3 and A4 have significant differences in terms of size and engine power. While the A3 is a compact sedan, the A4 is a midsize one. The A4 also has a more powerful engine, offering a smoother and more robust driving experience.

If you're looking for a more luxurious and high-tech car, the Audi A4 might be the better choice. It comes with advanced features such as Virtual Cockpit and a larger infotainment screen. The A3, on the other hand, has a more basic interior design.

Both the Audi A3 and A4 have excellent safety ratings, but the A4 has more advanced safety features as standard, such as Audi Pre Sense and Audi Side Assist. These features can give you peace of mind while on the road.