The Quattro Sport S1 (or E2) is an evolution of the Quattro Sport, and differentiates itself particularly with its numerous aerodynamic elements, giving it a devastating look. Despite only having one win under its belt, it remains the most emblematic model from Audi in rally driving. And with 550 hp, it is also the most powerful car to have ever stepped into rally championships. Here, it follows the design of the RAC 1985 (RAC Rally, now Wales Rally GB).