In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the Navigator are reminded to check the back seat if they opened the rear door before starting out. The SQ7 doesn’t offer a back seat reminder.
The Navigator’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The SQ7 doesn’t offer a driver alert monitor.
Both the Navigator and the SQ7 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, all wheel drive, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, post-collision automatic braking systems, daytime running lights, lane departure warning systems, blind spot warning systems, around view monitors and rear cross-path warning.
The Lincoln Navigator weighs 638 pounds more than the Audi SQ7. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.

