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The X6’s optional pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Nautilus doesn’t offer pre-crash pretensioners.
A passive infrared night vision system optional on the X6 helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera to detect heat, the system then displays the image on a monitor in the dashboard. The Nautilus doesn’t offer a night vision system.
The X6’s optional 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 Nautilus doesn’t offer a driver alert monitor.
Both the X6 and the Nautilus have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, 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, available all wheel drive and around view monitors.
The X6’s corrosion warranty is 7 years longer than the Nautilus’ (12 vs. 5 years).
BMW pays for scheduled maintenance on the X6 for 3 years and 36,000 miles. BMW will pay for oil changes, lubrication and any other required maintenance. Lincoln only pays for the first scheduled maintenance visit on the Nautilus.
J.D. Power and Associates rated the X6 first among midsize premium SUVs in their 2018 Initial Quality Study. The Nautilus isn’t in the top three in its category.
J.D. Power and Associates’ 2018 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that BMW vehicles are more reliable than Lincoln vehicles. J.D. Power ranks BMW 8th in reliability, above the industry average. With 6 more problems per 100 vehicles, Lincoln is ranked 10th.
From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that BMW vehicles are more reliable than Lincoln vehicles. Consumer Reports ranks BMW 12 places higher in reliability than Lincoln.
The X6 s/xDrive35i’s standard 3.0 turbo 6 cyl. produces 52 more horsepower (302 vs. 250) and 15 lbs.-ft. more torque (295 vs. 280) than the Nautilus’ standard 2.0 turbo 4 cyl. The X6 xDrive50i’s standard 4.4 turbo V8 produces 110 more horsepower (445 vs. 335) and 99 lbs.-ft. more torque (479 vs. 380) than the Nautilus’ optional 2.7 turbo V6.
Regenerative brakes improve the X6’s fuel efficiency by converting inertia back into energy instead of wasting it. The Nautilus doesn’t offer a regenerative braking system.
The X6 has 4.4 gallons more fuel capacity than the Nautilus (22.4 vs. 18 gallons), for longer range between fill-ups.
The X6’s launch control uses engine electronics to hold engine RPM’s precisely in order to provide the most stable and rapid acceleration possible, using all of the available traction. The Nautilus doesn’t offer launch control.
For better stopping power the X6 xDrive50i’s front brake rotors are larger than those on the Nautilus:
The X6’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs standard on the Nautilus are solid, not vented.
For better traction, the X6 has larger standard tires than the Nautilus (255/50R19 vs. 245/60R18). The X6’s optional tires are larger than the largest tires available on the Nautilus (F:275/40R20 & R:315/35R20 vs. 265/40R21).
The X6’s standard tires provide better handling because they have a lower 50 series profile (height to width ratio) that provides a stiffer sidewall than the Nautilus’ standard 60 series tires. The X6 xDrive50i’s optional 275/35R21 front and 315/30R21 rear tires have a lower 35 series front and 30 series rear profile than the Nautilus’ optional 40 series tires.
For better ride, handling and brake cooling the X6 has standard 19-inch wheels. Smaller 18-inch wheels are standard on the Nautilus.
Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the X6 can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The Nautilus doesn’t offer run-flat tires.
The X6 offers an available adjustable active suspension system, which counteracts cornering forces actively, limiting body roll and improving handling and stability. Lincoln doesn’t offer an active suspension on the Nautilus.
The X6 offers an optional automatic rear load leveling suspension to keep ride height level with a heavy load or when towing. The Nautilus doesn’t offer a load leveling suspension.
For a smoother ride and more stable handling, the X6’s wheelbase is 3.3 inches longer than on the Nautilus (115.5 inches vs. 112.2 inches).
For better handling and stability, the track (width between the wheels) on the X6 is 2.5 inches wider in the rear than on the Nautilus.
The X6’s standard towing capacity is much higher than the Nautilus’ (6000 vs. 2000 pounds).
The engine in the X6 is mounted longitudinally (North-South), instead of sideways, as in the Nautilus. This makes it easier to service and maintain, because there are no rear spark plugs and the accessory belts are in front.
Unlike the driver-only memory system in the Nautilus, the X6 offers an optional passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position, outside mirror angle, climate settings and radio stations and the front passenger seat also adjusts to the new passenger’s preset preferences.
The X6 offers an optional heads-up display that projects speed and other key instrumentation readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The Nautilus doesn’t offer a heads-up display.
The X6’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The Nautilus’ standard manually variable intermittent wipers have to be constantly adjusted.
Heated windshield washer nozzles are standard on the X6 to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The Nautilus doesn’t offer heated windshield washer nozzles.
While driving with high beams on, sensitive light sensors available for the X6 detect other vehicles which could be blinded and automatically switch to low beams. The Nautilus doesn’t offer automatic dimming high beams.
When the X6 is put in reverse, the passenger rearview mirror tilts from its original position. This gives the driver a better view of the curb during parallel parking maneuvers. Shifting out of reverse puts the mirror into its original position. The Nautilus’ mirror doesn’t automatically adjust for backing.
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