BMW Z4 Price in USA Starting From USD 103,000 to USD 110,000. The BMW Z4 is a new Coupe Car that comes with an Externally excited TwinPower Turbo 6 Cylinder Engine, 335hp Engine Power and 500Nm Torque of engine. Its ABS (Anti-lock braking system) Brake and Adaptive Suspension. Its mileage depending upon the variants and fuel type.