The 2025 Audi RS4 Avant Edition 25 Years was created to celebrate a quarter of a century of the iconic RS4 lineage, paying tribute to the original B5-generation RS4 Avant launched in 1999. As the most powerful production RS4 ever built, its 2.9-litre twin-turbocharged V6 produces 470 PS (464 bhp), enabling a 0-62 mph sprint in just 3.7 seconds. Inside, the Edition 25 Years features a unique and highly exclusive cabin with RS front bucket seats, matte carbon twill inlays, and distinctive Calendula Yellow stitching throughout the interior. The yellow detailing extends to the steering wheel, seats, centre console and trim elements, while each car carries an individual numbered plaque, highlighting its rarity. Production is strictly limited to 250 cars worldwide, with just 50 examples allocated to the UK, making it one of the rarest modern Audi RS models and a highly desirable collector's car.