The 2007 BMW Z4 M featured a more muscular front end, aerodynamic underbody structure, twin tailpipes, and a soft top. Its chassis benefits from a lightweight front axle and sportier suspension, which makes for a better weight distribution and, therefore, improved cornering speeds. The Z4 M is also fitted with a top-of-the-range 3.2L N52 6-cylinder inline unit delivering 343 hp and 270 lb-ft of torque. Other new features on the all-new Z4 M Roadster included an innovative Dynamic Stability Control system, Advanced Safety Electronics and a high-performance braking system, and more.