The QX80 Sensory’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The CX-90 doesn’t offer pre-crash pretensioners.
For enhanced safety, the front and middle seat shoulder belts of the Infiniti QX80 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 Mazda CX-90 doesn’t offer height-adjustable middle seat belts.
The QX80 has standard Active Head Restraints (AHR), which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the AHR system moves the headrests forward to prevent neck and spine injuries. The CX-90 doesn’t offer a whiplash protection system.
To help make backing out of a parking space safer, the QX80 has standard Rear Cross Traffic Alert with Back-up Collision Intervention, systems which detect vehicles approaching from the sides and can automatically apply the brakes to prevent a collision. Only the CX-90 Premium Plus/Turbo S Premium offers Rear Cross Traffic Braking.
Both the QX80 and the CX-90 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning and available all wheel drive.
The Infiniti QX80 weighs 458 to 1376 pounds more than the Mazda CX-90. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.