Standard safety equipment includes dual front airbags, as well as seat-mounted airbags that inflate to cover the head and thorax. Pop-up roll hoops are built in behind the rear seats and deploy with the airbags in a rollover. The stability control system also has a sport-driving mode and simulates a limited-slip differential to help the Z4 corner more effectively, while the brakes have a drying function as well as a Brake StartOff function for uphill starts. Active cruise control is standard; automatic headlamps are a new option for 2010, but lane-departure systems and a rearview camera are not offered.
Visibility is a step better than in most roadsters, too. Compared to the previous Z4, the side windows are 40 percent larger and the back window is 52 percent larger, which means you don't get the issues that make it a pain to drive in the city with the top raised.