Audi has three main trim levels that they use on their vehicles. The entry level is the Premium trim level, the next step up is the Premium plus level, and the top of the line trim level is the Prestige. Depending on the model, not all trim levels may be available, for example the S4, S5, and SQ5 are only offered in Premium plus and Prestige, while some of Audi’s higher end cars such as the RS 5, S6, S7, and RS 7 are only available in one trim line.
The entry level Premium trim usually comes without some of the more desireable features, and sometimes might not even offer them as options. On the A4 for example, the Premium trim level comes with 17" 10-spoke wheels with 245/45-17 all-season tires. Optional features include rear passenger thorax side airbags, the Audi MMI Navigation package with voice control and iPod integration, a Cold Weather package with split folding rear seats and heated front seats, and an S line style package with Xenon plus headlights and LED running lights and tail lights.