What are some key features to consider when choosing an Audi A3 engine?

I am in the market for an Audi A3 and I'm not sure what engine would suit my needs best. I want to know what features should be top priority when making my decision.

The most important feature to consider when choosing an Audi A3 engine is its power output. More powerful engines will give you better performance, but may also have higher fuel consumption.

Another important factor is the type of fuel the engine uses. Audi A3s come with both petrol and diesel options, so make sure to choose the one that fits your driving habits and budget.