Compare the2025 Mercedes AMG GLBVS 2024 Alfa Romeo Stelvio Quadrifoglio

For enhanced safety, the front and second-row seat shoulder belts of the Mercedes AMG GLB have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The Alfa Romeo Stelvio Quadrifoglio doesn’t offer pretensioners for its rear seat belts.

The AMG GLB’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 Quadrifoglio doesn’t offer pre-crash pretensioners.

The AMG GLB offers an optional Post Collision Brake, which automatically applies 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 AMG GLB has a standard Surround View System 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 AMG GLB and Stelvio Quadrifoglio have rear cross-traffic warning, but the AMG GLB has Active Brake Assist (automatically applies the brakes) to better prevent a collision when backing near traffic. The Stelvio Quadrifoglio’s Rear Cross-Path Detection doesn’t automatically brake.

Both the AMG GLB and the Stelvio Quadrifoglio have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, height adjustable front shoulder belts, 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, rear cross-path warning and available lane departure warning systems.

There are over 3 times as many Mercedes dealers as there are Alfa Romeo dealers, which makes it much easier should you ever need service under the AMG GLB’s warranty.

To reliably start during all conditions and help handle large electrical loads, the AMG GLB has a standard 800-amp battery. The Stelvio Quadrifoglio’s 525-amp battery isn’t as powerful.

J.D. Power and Associates’ 2024 Initial Quality Study of new car owners surveyed provide the statistics that show that Mercedes vehicles are better in initial quality than Alfa Romeo vehicles. With 20 fewer problems per 100 vehicles, JD Power ranks Mercedes higher than Alfa Romeo.

On the EPA test cycle the AMG GLB 35 gets better fuel mileage than the Stelvio Quadrifoglio (21 city/26 hwy vs. 17 city/23 hwy).

Regenerative brakes improve the AMG GLB’s fuel efficiency by converting inertia back into energy instead of wasting it. The Stelvio Quadrifoglio doesn’t offer a regenerative braking system.

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Mercedes AMG GLB higher (5 out of 10) than the Alfa Romeo Stelvio Quadrifoglio (3). This means the AMG GLB produces up to 16.5 pounds less smog-producing pollutants than the Stelvio Quadrifoglio every 15,000 miles.

The AMG GLB offers a standard sequential manual gearbox (SMG). With no clutch pedal to worry about and a fully automatic mode, an SMG is much more efficient than a conventional automatic but just as easy to drive. The Stelvio Quadrifoglio doesn’t offer an SMG or a conventional manual transmission.

The AMG GLB’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.

The AMG GLB’s optional tires provide better handling because they have a lower 35 series profile (height to width ratio) that provides a stiffer sidewall than the Stelvio Quadrifoglio’s optional 40 series front tires.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the AMG GLB can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The Stelvio Quadrifoglio doesn’t offer run-flat tires.

The AMG GLB’s drift compensation steering can automatically compensate for road conditions which would cause the vehicle to drift from side to side, helping the driver to keep the vehicle straight more easily. The Stelvio Quadrifoglio doesn’t offer drift compensation steering.

For better handling and stability, the track (width between the wheels) on the AMG GLB is 2.5 inches wider in the front than on the Stelvio Quadrifoglio.

The Mercedes AMG GLB may be more efficient, handle and accelerate better because it weighs about 450 pounds less than the Alfa Romeo Stelvio Quadrifoglio.

The AMG GLB offers optional seating for 7 passengers; the Stelvio Quadrifoglio can only carry 5.

The AMG GLB has .5 inches more front headroom, 4.5 inches more front legroom, .4 inches more rear headroom and 6.2 inches more rear legroom than the Stelvio Quadrifoglio.

For enhanced passenger comfort on long trips the AMG GLB’s middle row seats recline. The Stelvio Quadrifoglio’s rear seats don’t recline.

The AMG GLB’s cargo area provides more volume than the Stelvio Quadrifoglio.

Unlike the driver-only memory seat and mirrors in the Stelvio Quadrifoglio, the AMG GLB has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, suspension setting, power steering assist, outside mirror angle, climate settings and radio stations and the front passenger seat also adjusts to the new passenger’s preset preferences.

The AMG GLB offers an optional heads-up display that projects speed, tachometer and navigation instruction 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 AMG GLB 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. The driver of the Stelvio Quadrifoglio can only operate the windows from inside the vehicle, with the ignition on.

The AMG GLB’s standard Keyless-Go allow you to unlock the doors from any outside door handle, open the cargo door, and start the engine, all without removing the key from the pocket or purse. Keyless-Enter-n-Go standard on the Stelvio Quadrifoglio doesn’t offer a sensor on the rear doors, so you’ll have to reach a front handle to unlock the rear door.

The AMG GLB’s LED headlights produce a white, bright light using less electricity than the Stelvio Quadrifoglio’s xenon high intensity discharge (HID) headlights. HID headlights can be slow to reach full brightness or power cycle, causing issues when flashing them to signal other vehicles; LED headlights light instantly. LED lights also last about three to four times as long.

When the AMG GLB 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 AMG GLB 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 AMG GLB offers optional massaging front seats in order to maximize comfort and eliminate fatigue on long trips. Massaging seats aren’t available in the Stelvio Quadrifoglio.

The AMG GLB’s Active Parking Assist can parallel park or back into a parking spot by itself, stopping and changing direction automatically. The Stelvio Quadrifoglio doesn’t offer an automated parking system.

Insurance will cost less for the AMG GLB owner. The Complete Car Cost Guide estimates that insurance for the AMG GLB will cost $4670 less than the Stelvio Quadrifoglio over a five-year period.

The AMG GLB will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the AMG GLB will retain 54.15% of its original price after five years, while the Stelvio Quadrifoglio only retains 52.24%.

The Mercedes GLB outsold the Alfa Romeo Stelvio by over three to one during 2023.