The 2015 BMW M4 is a high-performance variant of the brand's 4 Series, renowned for its combination of luxury and athleticism. It's powered by a 3.0-liter TwinPower Turbo inline-six producing 425 hp and 406 lb-ft of torque, paired with either a standard 6-speed manual transmission or optional 7-speed dual-clutch automatic. The M4 is available as a coupe or a convertible, both offering rear-wheel drive. Key features include a sport-tuned suspension, an Active M Differential, and M compound brakes, ensuring engaging handling and impressive performance. Inside, the M4 incorporates top-quality materials in its well-designed cabin with notable tech highlights like an 8.8" screen, navigation, satellite radio, BMW's iDrive infotainment system, and a 16-speaker Harman Kardon surround-sound system. Driver assistance features include a rearview camera, front and rear parking sensors, and adaptive cruise control.