Almost 40 years ago – on October 10, 1983 – Audi Sport GmbH, as it is known now, was founded as quattro GmbH. Today, it shapes the sporty and exclusive image of the brand with the four rings. At Audi, the vehicles with the red rhombus stand for performance and sportiness. The birthday celebrations begin at the Nürburgring 24 Hours next weekend (May 18–21).