The Q50 Red Sport 400’s optional pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Maxima doesn’t offer pre-crash pretensioners.
The Q50 offers all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The Maxima doesn’t offer all-wheel drive.
Both the Q50 and Maxima have Rear Cross Traffic Alert, but the Q50 has Back-up Collision Intervention (automatically applies the brakes) to better prevent a collision when backing near traffic. The Maxima’s Rear Cross Traffic Alert doesn’t automatically brake.
Both the Q50 and the Maxima have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front 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 and rear cross-path warning.
The Infiniti Q50 has a better fatality history. The Q50 was involved in fatal accidents at a rate 18.6% lower per vehicle registered than the Maxima, according to the Insurance Institute for Highway Safety.

