How does the Audi A3 compare to the A4 in terms of fuel efficiency?

I am looking for a new car and am considering either the Audi A3 or the A4. Both seem like great options, but one important factor for me is fuel efficiency. Can anyone provide insight into how these two vehicles compare in this area?

According to official EPA ratings, the Audi A3 has better fuel efficiency than the A4. However, real-world driving conditions may vary, so it's best to test drive both and see for yourself.

After doing some research and comparing the two models, I found that the Audi A3 has a slightly smaller engine, giving it better fuel efficiency. However, both cars have optional trim levels with more powerful engines that may impact this comparison.

I have owned both an Audi A3 and an A4 and can say from personal experience that the A3 definitely has better fuel efficiency. The A4 has a larger engine and is generally more powerful, but that comes at the cost of burning more fuel.