What is the (technical) difference between the Audi A4 and A3?

I'm trying to decide between the Audi A4 and A3, but I can't seem to figure out what sets them apart from each other. Can anyone provide a detailed explanation of the technical differences between the two models?

The Audi A4 and A3 both have similar exterior designs and feature many of the same technology and safety features. However, the main difference lies in their powertrains. The A4 has a more powerful engine and offers options for all-wheel drive, while the A3 has a smaller engine and is only available with front-wheel drive. If you are looking for a more performance-oriented drive, the A4 would be a better option.

Another key difference between the Audi A4 and A3 is their size and interior space. The A4 is a larger sedan and offers more passenger and cargo space compared to the A3, making it a better choice for those who need more room. Additionally, the A4 has a higher trim level with more luxurious features and materials, while the A3 has a more basic interior. Consider your needs and budget when deciding between the two models.

When it comes to fuel efficiency, the Audi A3 has a slight advantage over the A4. The smaller engine and front-wheel drive configuration allow the A3 to achieve better gas mileage. However, the A4 offers a more enjoyable and dynamic driving experience with its more powerful engine. If you prioritize efficiency, go for the A3. But if you want a more engaging drive, the A4 is the way to go.