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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 Stelvio doesn’t offer pre-crash pretensioners.
The X6 has standard Active Head Restraints, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the Active Head Restraints system moves the headrests forward to prevent neck and spine injuries. The Stelvio doesn’t offer a whiplash protection system.
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 Stelvio doesn’t offer a night vision system.
The X6 offers an optional Surround View Cameras to allow the driver to see objects all around the vehicle on a screen. The Stelvio 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.
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 Stelvio doesn’t offer a driver alert monitor.
The X6 has standard BMW Assist, which uses a global positioning satellite (GPS) receiver and a cellular system to remotely unlock your doors if you lock your keys in, help track down your vehicle if it’s stolen or send emergency personnel to the scene if any airbags deploy. The Stelvio doesn’t offer a GPS response system, only a navigation computer with no live response for emergencies, so if you’re involved in an accident and you’re incapacitated help may not come as quickly.
Both the X6 and the Stelvio have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras and available all wheel drive.
The BMW X6 weighs 541 to 1088 pounds more than the Alfa Romeo Stelvio. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.
The X6’s corrosion warranty is 8 years longer than the Stelvio’s (12 vs. 4 years).
BMW pays for scheduled maintenance on the X6 for 2 years and 26000 miles longer than Alfa Romeo pays for maintenance for the Stelvio (3/36,000 vs. 1/10,000).
There are almost 2 times as many BMW dealers as there are Alfa Romeo dealers, which makes it much easier should you ever need service under the X6’s warranty.
J.D. Power and Associates rated the X6 first among midsize premium SUVs in their 2018 Initial Quality Study. The Stelvio isn’t in the top three in its category.
The X6 s/xDrive35i’s standard 3.0 turbo 6 cyl. produces 22 more horsepower (302 vs. 280) than the Stelvio’s 2.0 turbo 4 cyl. The X6 xDrive50i’s standard 4.4 turbo V8 produces 165 more horsepower (445 vs. 280) and 173 lbs.-ft. more torque (479 vs. 306) than the Stelvio’s 2.0 turbo 4 cyl.
Regenerative brakes improve the X6’s fuel efficiency by converting inertia back into energy instead of wasting it. The Stelvio doesn’t offer a regenerative braking system.
The X6 has 5.5 gallons more fuel capacity than the Stelvio (22.4 vs. 16.9 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 Stelvio doesn’t offer launch control.
For better stopping power the X6’s brake rotors are larger than those on the Stelvio:
The X6 stops much shorter than the Stelvio:
60 to 0 MPH
For better traction, the X6 has larger standard tires than the Stelvio (255/50R19 vs. 235/60R18). The X6’s optional tires are larger than the largest tires available on the Stelvio (F:275/40R20 & R:315/35R20 vs. 255/45R20).
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 Stelvio’s 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 Stelvio’s optional 45 series tires.
For better ride, handling and brake cooling the X6 has standard 19-inch wheels. Smaller 18-inch wheels are standard on the Stelvio. The X6 xDrive50i’s optional 21-inch wheels are larger than the 20-inch wheels optional on the Stelvio.
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 Stelvio 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. Alfa Romeo doesn’t offer an active suspension on the Stelvio.
The X6 offers an optional automatic rear load leveling suspension to keep ride height level with a heavy load or when towing. The Stelvio doesn’t offer a load leveling suspension.
For a smoother ride and more stable handling, the X6’s wheelbase is 4.5 inches longer than on the Stelvio (115.5 inches vs. 111 inches).
For better handling and stability, the track (width between the wheels) on the X6 is 1.1 inches wider in the front and 2.2 inches wider in the rear than on the Stelvio.
The X6 xDrive35i handles at .88 G’s, while the Stelvio Ti AWD pulls only .82 G’s of cornering force in a Motor Trend skidpad test.
The X6 xDrive35i executes Motor Trend’s “Figure Eight” maneuver quicker than the Stelvio Ti AWD (26.1 seconds @ .71 average G’s vs. 26.9 seconds @ .67 average G’s).
For greater off-road capability the X6 has a greater minimum ground clearance than the Stelvio (8.3 vs. 8.1 inches), allowing the X6 to travel over rougher terrain without being stopped or damaged.
The X6 has 3.7 inches more front legroom, 3 inches more front shoulder room, 3.7 inches more rear legroom and 1.9 inches more rear shoulder room than the Stelvio.
The X6 has a much larger cargo area with its rear seat up than the Stelvio with its rear seat up (26.6 vs. 18.5 cubic feet). The X6 has a much larger cargo area with its rear seat folded than the Stelvio with its rear seat folded (59.7 vs. 56.5 cubic feet).
A standard locking glovebox (which can’t be accessed with the valet key) keeps your small valuables safer in the X6. The Stelvio doesn’t offer locking storage for small valuables.
The X6’s standard towing capacity is much higher than the Stelvio’s (6000 vs. 3000 pounds).
Unlike the driver-only memory seat and mirrors in the Stelvio, 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 Stelvio doesn’t offer a heads-up display.
If the windows are left open on the X6 the driver can close them all at the outside door handle or from a distance using the remote. On a hot day the driver can also lower the windows the same way. The driver of the Stelvio can only operate the windows from inside the vehicle, with the ignition on.
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. Heated windshield washer nozzles cost extra on the Stelvio.
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 Stelvio’s mirror doesn’t automatically adjust for backing.
Optional air-conditioned seats in the X6 keep the driver and front passenger comfortable and take the sting out of hot seats in summer. The Stelvio doesn’t offer air-conditioned seats.
The X6’s optional Parking Assistant can parallel park or back into a parking spot by itself, with the driver only controlling speed with the brake pedal. The Stelvio doesn’t offer an automated parking system.
The BMW X6 outsold the Alfa Romeo Stelvio by over two to one during 2017.
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