What are the main differences between the Audi A6 and the A4?

I am considering buying either the Audi A6 or the A4, but I'm not sure which one is a better fit for me. Can someone explain the key differences between these two models?

The main difference between the Audi A6 and the A4 is size. The A6 is larger and offers more interior space, while the A4 is more compact and easier to navigate in tighter spaces.

In terms of performance, the A6 has a more powerful engine and can accelerate faster. However, the A4 is more fuel efficient and can still deliver a smooth and comfortable ride.

If you prioritize technology and luxury features, then the A6 is the better choice. It offers more advanced features and a more upscale interior. However, the A4 is still well-equipped and offers great value for its price.