In the UK, some of the most popular Audi models are the Audi A3, Audi A4, and Audi Q5.

The Audi A3 is favored for its compact size, stylish design, and a range of efficient engines. It offers a comfortable ride and is suitable for urban driving and daily commutes.

The Audi A4 is known for its balance of performance and luxury. It comes with advanced technology features, a refined interior, and powerful engine options, making it a popular choice among those seeking a mid-sized sedan.

The Audi Q5, on the other hand, is a popular SUV model. It provides ample space, a high level of comfort, and good off-road capabilities. It's suitable for families and those who enjoy outdoor activities.

Another popular model is the Audi A6, which is recognized for its executive-level comfort, advanced safety features, and sophisticated design. The Audi e-tron, as an electric vehicle, is also gaining popularity due to its eco-friendly nature and modern technology.

These models have become popular in the UK because of Audi's reputation for quality, advanced engineering, and stylish designs.