To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the QX55. But it costs extra on the UX Series.
The QX55 Essential/Sensory has a standard Around View® Monitor to allow the driver to see objects all around the vehicle on a screen. The UX Series only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.
Both the QX55 and the UX Series have standard driver and passenger frontal airbags, front and rear side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, plastic fuel tanks, 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 and rear cross-path warning.
The Infiniti QX55 weighs 410 to 759 pounds more than the Lexus UX Series. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.

