What are the main differences between the Audi A6 and S6 models?

I am considering buying an Audi A6 or S6. I would like to know the technical specifications and features that set these two models apart.

The main difference between the Audi A6 and S6 is the engine. The S6 has a more powerful V8 engine compared to the A6's V6. This results in faster acceleration and better performance on the S6.

Another key difference is the suspension. The S6 has a sport-tuned suspension which provides a more dynamic driving experience compared to the standard suspension on the A6. This can be a major deciding factor for those who prioritize driving dynamics.