What is the difference between Audi A3 and S3?

I'm thinking of buying an Audi, but I'm not sure what the difference is between the A3 and S3 models. Can you help me understand?

The main difference between the Audi A3 and S3 is their performance capabilities. The S3 has a more powerful engine and upgraded suspension and braking systems, making it better suited for a more exhilarating driving experience.

Another key difference between the A3 and S3 is their exterior design. The S3 has a sportier and more aggressive look, with bolder accents and a more aerodynamic shape. The A3, while still sleek and stylish, has a more traditional and subtle design.