The contenders are BMW's limited-run M4 CS and the 2025 Porsche 911 Carrera 4 GTS. The rear-engined thriller from Zuffenhausen benefits from hybrid assistance that wouldn't have been possible ...

🚀🔥 From enhanced aerodynamics to an aggressive new look, this upgrade takes performance and style to the next level. Don't miss this ultimate BMW M4 modification—watch now and get inspired!