The 2008 Audi A4 is part of the model's fourth generation, renowned for combining luxury and performance in a compact sedan. Available engines range from a standard 200-horsepower 2.0-liter four-cylinder turbo to a 340-horsepower 4.2-liter V8 featured in the high-performance S4 variant. All trims are paired with a six-speed automatic transmission, and Audi's signature Quattro all-wheel-drive system is standard on most models, an exception being the base front-wheel-drive variant. The A4 carried Audi's reputation for comfort and sophistication into the cabin with standard amenities like leather upholstery, automatic climate control, a power driver's seat, and a sunroof. An optional DVD-based navigation system enhanced its tech offerings. During its release, it earned acclaim for its balanced mix of sporty handling, comfortable ride, upscale interior, and excellent safety ratings from IIHS.