2021 Audi S3 Sportback and sedan revealed, Australia confirmed

UPDATE: As part of a long-lead introduction, Audi has provided additional minor details about the new S3’s technical aspects. Check the bottom of this article for the latest. Audi has unveiled its new-generation challenger to the BMW M135i/M235i xDrive and Mercedes-AMG A35 premium hot small cars: the 2021 S3 Sportback and sedan. Twin under the skin to the upcoming Mk8 Volkswagen Golf R, the fourth-generation S3 follows a similar formula to that laid out by its predecessors.