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The X3 M’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Stelvio Quadrifoglio doesn’t offer pre-crash pretensioners.
The X3 M 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 Quadrifoglio doesn’t offer a whiplash protection system.
The X3 M has standard PostCrash iBrake, which automatically apply the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The Stelvio Quadrifoglio doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.
The X3 M offers an optional Surround View to allow the driver to see objects all around the vehicle on a screen. The Stelvio Quadrifoglio 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.
Both the X3 M and the Stelvio Quadrifoglio 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, all-wheel drive, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, blind spot warning systems, rearview cameras and rear cross-path warning.
The X3 M’s corrosion warranty is 8 years longer than the Stelvio Quadrifoglio’s (12 vs. 4 years).
BMW pays for scheduled maintenance on the X3 M for 3 years and 36,000 miles. BMW will pay for oil changes, lubrication and any other required maintenance. Alfa Romeo only pays for the first scheduled maintenance visit on the Stelvio Quadrifoglio.
There are over 2 times as many BMW dealers as there are Alfa Romeo dealers, which makes it much easier should you ever need service under the X3 M’s warranty.
J.D. Power and Associates’ 2019 Initial Quality Study of new car owners surveyed provide the statistics that show that BMW vehicles are better in initial quality than Alfa Romeo vehicles. J.D. Power ranks BMW 20th in initial quality. With 16 more problems per 100 vehicles, Alfa Romeo is ranked 29th.
From surveys of all its subscribers, Consumer Reports’ December 2019 Auto Issue reports that BMW vehicles are more reliable than Alfa Romeo vehicles. Consumer Reports ranks BMW 12 places higher in reliability than Alfa Romeo.
The X3 M Competition’s standard 3.0 turbo 6-cylinder produces 26 lbs.-ft. more torque (469 vs. 443) than the Stelvio Quadrifoglio’s 2.9 turbo V6.
Regenerative brakes improve the X3 M’s fuel efficiency by converting inertia back into energy instead of wasting it. The Stelvio Quadrifoglio doesn’t offer a regenerative braking system.
The X3 M’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 Quadrifoglio doesn’t offer launch control.
For better stopping power the X3 M’s brake rotors are larger than those on the Stelvio Quadrifoglio:
Stelvio Quadrifoglio (opt.)
The X3 M Competition’s tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the Stelvio Quadrifoglio’s 45 series front tires.
For better ride, handling and brake cooling the X3 M Competition has standard 21-inch wheels. The Stelvio Quadrifoglio’s largest wheels are only 20-inches.
The X3 M has a standard space-saver spare tire so you can replace a flat tire and drive to have the flat repaired or replaced. A spare tire isn’t available on the Stelvio Quadrifoglio; it requires you to depend on roadside assistance and your vehicle will have to be towed.
For a smoother ride and more stable handling, the X3 M’s wheelbase is 1.9 inches longer than on the Stelvio Quadrifoglio (112.8 inches vs. 110.9 inches).
For better handling and stability, the track (width between the wheels) on the X3 M is 2.7 inches wider in the front than on the Stelvio Quadrifoglio.
The X3 M’s front to rear weight distribution is more even (50.1% to 49.9%) than the Stelvio Quadrifoglio’s (52.9% to 47.1%). This gives the X3 M more stable handling and braking.
The X3 M Competition handles at .95 G’s, while the Stelvio Quadrifoglio pulls only .92 G’s of cornering force in a Motor Trend skidpad test.
The X3 M Competition executes Motor Trend’s “Figure Eight” maneuver quicker than the Stelvio Quadrifoglio (24.2 seconds @ .86 average G’s vs. 24.9 seconds @ .79 average G’s).
For greater off-road capability the X3 M has a greater minimum ground clearance than the Stelvio Quadrifoglio (8 vs. 7.9 inches), allowing the X3 M to travel over rougher terrain without being stopped or damaged.
The X3 M has 3.8 cubic feet more passenger volume than the Stelvio Quadrifoglio (101.4 vs. 97.6).
The X3 M has .9 inches more front headroom, 3.7 inches more front legroom, .1 inches more front shoulder room and 4.5 inches more rear legroom than the Stelvio Quadrifoglio.
For enhanced passenger comfort on long trips the X3 M’s rear seats recline. The Stelvio Quadrifoglio’s rear seats don’t recline.
The X3 M has a much larger cargo volume with its rear seat up than the Stelvio Quadrifoglio with its rear seat up (28.7 vs. 18.5 cubic feet). The X3 M has a much larger cargo volume with its rear seat folded than the Stelvio Quadrifoglio with its rear seat folded (62.7 vs. 56.5 cubic feet).
Pressing a switch automatically lowers the X3 M’s rear seats, to make changing between passengers and cargo easier. The Stelvio Quadrifoglio doesn’t offer automatic folding seats.
The X3 M 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 Quadrifoglio doesn’t offer a heads-up display.
If the windows are left open on the X3 M 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 lower the windows from a distance using the keyless remote or with the driver’s door power window switch. The driver of the Stelvio Quadrifoglio can only operate the windows from inside the vehicle, with the ignition on.
Manual rear side window sunshades are available in the X3 M to help block heat and glare for the rear passengers. The Stelvio Quadrifoglio doesn’t offer rear side window sunshades.
When the X3 M 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 Quadrifoglio’s mirror doesn’t automatically adjust for backing.
Optional air-conditioned seats in the X3 M keep the driver and front passenger comfortable and take the sting out of hot seats in summer. The Stelvio Quadrifoglio doesn’t offer air-conditioned seats.
The X3 M’s optional Parking Assistant Plus can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. The Stelvio Quadrifoglio doesn’t offer an automated parking system.
The BMW X3 outsold the Alfa Romeo Stelvio by over seven to one during 2019.
© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.
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