Audi is celebrating a major production anniversary in the premium mid size segment: 25 years ago, the first Audi A4 drove off the assembly line in Ingolstadt. Since then, the brand with the Four Rings has produced more than 7.5 million units of the model. A quarter of a century after its birth, demand is unabated for the Audi A4, now in its fifth generation. With 344,586 units sold in 2018, the A4 is the world’s most popular model of the Four Rings. Approximately every fifth Audi delivered worldwide today comes from this series.