What do the different trims in the Audi A5 mean?

I'm interested in buying an Audi A5 but I'm confused about the different trim options. Can someone explain the differences between the Premium, Sport, and Prestige trims?

The Premium trim offers the standard features of the A5, including leather seats and a panoramic sunroof. The Sport adds a sport-tuned suspension and exterior styling enhancements. The Prestige includes all the features of the Premium and Sport trim plus a Bang & Olufsen sound system.

The trim levels in the Audi A5 represent the different levels of luxury and performance features. The Premium is the base level, Sport adds more performance elements, and Prestige adds top-of-the-line luxury features.