What is the difference between Audi A5 and S5?

I am looking to purchase a new car and am considering the Audi A5 and S5 models. What are the main differences between these two models, both in terms of performance and features?

The main difference between the Audi A5 and S5 is the engine. The S5 has a more powerful engine, giving it better performance and acceleration. Additionally, the S5 comes with standard all-wheel drive, while the A5 offers it as an optional upgrade.

In terms of features, the S5 offers more high-end options such as sport-tuned suspension and a premium sound system. However, the A5 still has plenty of luxury features and is a more affordable option.