What's the difference between the Audi A1's S-Line and S1 variants?

I'm looking to buy an Audi A1, but I can't decide between the S-Line and S1 models. Can anyone explain the specific differences and advantages between the two?

The main difference between the S-Line and S1 variants of the Audi A1 is the engine. The S-Line has a 1.4-liter turbocharged engine, while the S1 has a more powerful 2.0-liter turbocharged engine. The S1 also has Quattro all-wheel drive and a sportier suspension, making it more suitable for performance-oriented drivers.

Aside from the engine, the S1 also has a redesigned front grille, unique exterior styling, and a sportier interior with additional features such as sport seats and a flat-bottomed steering wheel. These upgrades give the S1 a more aggressive and distinct appearance compared to the S-Line.

If you're looking for a more budget-friendly option, the S-Line may be the better choice. It still offers a sporty look and feel, but with a smaller and more fuel-efficient engine. However, if you want a true performance vehicle with more power and advanced features, the S1 is worth the extra investment.