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 LX are reminded to check the back seat if they opened the rear door before starting out. The Aviator doesn’t offer a back seat reminder.
To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the LX. But it costs extra on the Aviator.
Both the LX and the Aviator 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, post-collision automatic braking systems, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning and driver alert monitors.
The Lexus LX weighs 793 to 1200 pounds more than the Lincoln Aviator. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.

