What are the key factors to consider when choosing a new set of tires for my Audi A4?

I recently purchased an Audi A4 and want to ensure I make an informed decision when selecting new tires for my vehicle. What should I take into account to make the best decision for my Audi A4?

It is important to consider the tire size and type recommended by the manufacturer, as well as the load and speed ratings. Additionally, think about your driving habits and the climate you live in. Wider tires can provide better handling, but may also decrease fuel efficiency.