24k-Mile 2007 BMW Z4 M Coupe This 2007 BMW Z4 M coupe is finished in Silver Gray Metallic over Black Nappa leather and has 24k miles. Power is provided by a 3.2-liter S54 inline-six linked with a six-speed manual transmission and a limited-slip differential. Modifications include a Strömung exhaust system, an Eventuri carbon-fiber intake, a UUC Motorwerks shift knob, and aftermarket lower bodywork...