The 2025 BMW M3 Competition xDrive is tested as a potential market leader in sedan speed. This video from Bros FOURR Speed puts the all-wheel-drive M3 through its paces, examining whether it can outrun rivals like the Audi RS5 and Mercedes-AMG C63. With a 503-horsepower twin-turbo inline-six and lightning-fast shifts, the car launches from 0-60 mph in just 3.4 seconds. The hosts analyze real-world acceleration, handling, and braking performance, comparing it to both previous M3 models and current competitors. They also discuss the xDrive system’s impact on cornering grip and everyday usability. Ultimately, the review seeks to answer if this Bavarian beast truly is the fastest sedan on the market today, focusing on raw speed data and driving impressions.