2007 BMW Z4 3.0si

Model Highlights

BMW's Z4 lineup features both coupe and roadsters for 2007, as well as three different engines. All models are well equipped, and carry styling that has generated much discussion among automotive cognoscenti. The Z4's lines set it apart from the rest of its segment, and the car's superb road manners back up the promises made by its exotic shape. The base 3.0i roadster uses BMW's superb 3.0L DOHC inline six-cylinder engine. It has four valves per cylinder, dual intake tracks, and steplessly variable intake and exhaust-valve timing to effect 215 horsepower. The 3.0si coupe and roadster use a version of the same engine, with three-stage intake, to produce 255 horsepower. All of these models match their engines to slick shifting six-speed transmissions, and six-speed autos with paddles mounted on the steering wheel are optional. Standard features on the 3.0i roadster include dynamic stability control, traction control, 17-inch alloy wheels, anti-lock brakes, automatic headlights, fog lights, power heated mirrors, rain-sensing wipers, and air conditioning. The 3.0si adds dual exhaust, leather seat trim, an on-board computer, automatic climate control, an upgraded audio system with Carver technology and two subwoofers, and aluminum interior trim. The M roadster and coupe step up to a 3.2L inline six that generates an eye-popping 330 horsepower. With a curb weight of 3,230 pounds, the M coupe only needs a reported 5.0 seconds to reach 60 mph from a standstill. In addition to the stellar powerplant, the M cars have a host of performance upgrades, including a variable differential lock, stiffer stabilizer bars, larger wheels, better brakes, exhaust tweaks, and dynamic driving control. Xenon headlights, beefier seat bolsters, and a go-fast steering wheel are all part of the package as well. The M roadster has an automatic soft top versus the standard manual top on the other roadsters. A Premium Package is available on all models, and it adds auto-dimming interior and exterior mirrors, power seats with driver position memory, extra storage features, Bluetooth, and a four-year subscription to BMW Assist. On the 3.0i it also adds automatic climate control, while the 3.0si gets xenon headlights. Other notable options include high definition radio, heated seats, a navigation system, and wood interior trim. A Sport Package is available on the 3.0si. It includes 18-inch alloys, lo-profile performance tires, a lowered ride height courtesy of a tuned suspension, and dynamic driving control.