Front and side airbags, adaptive brake lights, and multi-setting stability and brake control systems are all standard. The Z4 can even cut fuel flow, turn on the hazard lights, and unlock the doors in the event of an accident.
For those seeking even greater safety, optional upgrades include: automatic headlamps, park distance control, and BMW Assist service with Bluetooth. More advanced features, such as a rearview camera, blind spot monitoring, and lane departure warning systems aren't available in the Z4, however.
Visibility is never much of an issue in the Z4, even with the folding hardtop raised. The side windows are quite large, the rear window opening is well-shaped, and forward visibility is expansive.