Although neither of the U.S. safety agencies have crash-tested the Z4, it offers an impressive array of safety features.
Front and side airbags, adaptive brake lights, and several layers of advanced stability and brake control systems all contribute to the Z4's active and passive safety, and in an accident a system will even cut fuel flow, turns on the hazard lights, and unlocks the doors in the event of an accident.
Optional safety upgrades include automatic headlamps, park distance control, and BMW Assist service with Bluetooth. Advanced features like lane departure warning, rearview camera, and blind spot monitoring aren't available, however.
Side windows are quite large, and there's no high tail getting in the way of rearward vision, so outward visibility is better than in most other roadsters or convertibles.