Which is better, Audi S or RS?
RS is Audi’s highest performance ‘top-tier’ trim level, positioned distinctly above the S (Sport) specification level of Audi’s regular model range. All RS cars pioneer some of Audi’s latest and most advanced technology and engineering prowess, therefore, RS cars are considered by some as halo vehicles. What the Audi letters mean. Audi’s lettering system is relatively straightforward, with the letters representing vehicle type and performance. A’ denotes standard base models typically sedans, hatchbacks, and station wagons. The letter ‘Q’ is used for SUVs, and ‘E’ is designated for electric vehicles.