Power's portfolio and boasts no fewer than 700 horses. But how much does this upgrade cost? Keep reading to find out ...

Experience the raw power of the BMW M4 Hamann Stage 4 with Akrapovic exhaust! Enjoy incredible sound, aggressive launch control, and massive tire smoke in this high-performance burnout session.

Watch the BMW M4 Hamann Stage 4 equipped with Akrapovic exhaust unleash brutal power! Featuring epic launch control, intense ...