For enhanced safety, the front and rear seat shoulder belts of the Porsche Taycan have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision. The BMW i5 doesn’t offer pretensioners for its rear seat belts.
For enhanced safety, the front seat shoulder belts of the Porsche Taycan are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The BMW i5 doesn’t offer height-adjustable seat belts.
Both the Taycan and i5 have child safety locks to prevent children from opening the rear doors. The Taycan has power child safety locks, allowing the driver to activate and deactivate them from the driver's seat and to know when they're engaged. The i5’s child locks have to be individually engaged at each rear door with a manual switch. The driver can’t know the status of the locks without opening the doors and checking them.
A passive infrared night vision system optional on the Taycan helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera to detect heat, the system then displays the image on a monitor in the dashboard. The i5 doesn’t offer a night vision system.
Both the Taycan and the i5 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, rearview cameras, available blind spot warning systems and around view monitors.