What are the key differences between the 2021 Audi A5 Sportback and S5 Sportback?

I am planning to purchase an Audi A5 or S5 Sportback and would like to understand the main distinctions between the two models. Are the performance and features worth the extra cost for the S5? Do both models have similar interior and exterior design elements? How do their engines compare?

The 2021 Audi A5 Sportback is a great choice for a sleek and sporty sedan, with a slightly lower price point than the S5 Sportback. However, if you value a more powerful and dynamic driving experience, the S5 may be worth the extra investment. Both models have similar design elements, but the S5 offers a more aggressive front fascia and quad exhaust pipes for a more intimidating appearance. The S5 also boasts a stronger engine, producing 349 horsepower compared to the A5's 261 horsepower.