The "RS" initials are taken from the German: RennSport – literally translated as "racing sport". RS is Audi's highest trim level, positioned above the "S" ("Sport") specification level of Audi's regular model range. RS cars are usually produced in limited numbers over a limited time scale (historically, nearing the end of the production run of a certain model, before a new evolution or generation of the same model), and pioneer some of Audi's latest and most advanced technology and engineering prowess; therefore, "RS" cars could be described as (and are often marketed via television advertising as) "halo vehicles". Whilst RS cars generally command a much higher purchase price, compared to their 'lesser' brethren, they also retain very high residual values too.
