2019 Alfa Romeo Stelvio Quadrifoglio vs. 2019 BMW X6 M

Detailed Review, Specifications & Comparison

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Safety

For enhanced safety, the front seat shoulder belts of the Alfa Romeo Stelvio Quadrifoglio are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The BMW X6 M doesn’t offer height-adjustable seat belts.

To help make backing safer, the Stelvio Quadrifoglio’s cross-path warning system uses wide-angle radar in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. The X6 M doesn’t offer a cross-path warning system.

Both the Stelvio Quadrifoglio and the X6 M 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 available lane departure warning systems.

Engine

As tested in Car and Driver the Alfa Romeo Stelvio Quadrifoglio is faster than the BMW X6 M:

 

Stelvio Quadrifoglio

X6 M

Zero to 30 MPH

1.3 sec

1.4 sec

Zero to 60 MPH

3.3 sec

3.7 sec

Zero to 100 MPH

8.4 sec

9 sec

5 to 60 MPH Rolling Start

4.3 sec

4.4 sec

Passing 30 to 50 MPH

2.4 sec

2.6 sec

Passing 50 to 70 MPH

2.6 sec

3 sec

Quarter Mile

11.8 sec

12.1 sec

Speed in 1/4 Mile

117 MPH

115 MPH

Top Speed

176 MPH

160 MPH

Fuel Economy and Range

On the EPA test cycle the Stelvio Quadrifoglio gets better fuel mileage than the X6 M (17 city/23 hwy vs. 14 city/19 hwy).

An engine control system that can shut down half of the engine’s cylinders helps improve the Stelvio Quadrifoglio’s fuel efficiency. The X6 M doesn’t offer a system that can shut down part of the engine.

Brakes and Stopping

The Stelvio Quadrifoglio offers optional heat-treated ceramic brake rotors, which last ten to twenty times as long as conventional cast iron rotors, don’t rust, don’t fade during repeated high speed braking, and their lighter weight contribute to better braking, handling and acceleration. The X6 M doesn’t offer ceramic brake rotors.

The Stelvio Quadrifoglio stops shorter than the X6 M:

 

Stelvio Quadrifoglio

X6 M

 

60 to 0 MPH

103 feet

105 feet

Motor Trend

Suspension and Handling

For better maneuverability, the Stelvio Quadrifoglio’s turning circle is 2.3 feet tighter than the X6 M’s (39.7 feet vs. 42 feet).

Chassis

The Alfa Romeo Stelvio Quadrifoglio may be more efficient, handle and accelerate better because it weighs about 850 pounds less than the BMW X6 M.

The Stelvio Quadrifoglio is 8.7 inches shorter than the X6 M, making the Stelvio Quadrifoglio easier to handle, maneuver and park in tight spaces.

The design of the Alfa Romeo Stelvio Quadrifoglio amounts to more than styling. The Stelvio Quadrifoglio has an aerodynamic coefficient of drag of .34 Cd. That is lower than the X6 M (.37). A more efficient exterior helps keep the interior quieter and helps the Stelvio Quadrifoglio get better fuel mileage.

As tested by Car and Driver, the interior of the Stelvio Quadrifoglio is quieter than the X6 M:

 

Stelvio Quadrifoglio

X6 M

At idle

47 dB

48 dB

Full-Throttle

80 dB

88 dB

70 MPH Cruising

66 dB

70 dB

Passenger Space

The Stelvio Quadrifoglio has .3 inches more front headroom and 1 inch more rear headroom than the X6 M.

Ergonomics

To improve rear visibility by keeping the rear window clear, the Stelvio Quadrifoglio has a standard rear wiper. The X6 M doesn’t offer a rear wiper.

To keep a safe, consistent following distance, the Stelvio Quadrifoglio offers an optional Adaptive Cruise Control, which alters the speed of the vehicle without driver intervention. This allows the driver to use cruise control more safely without constantly having to disengage it when approaching slower traffic. The X6 M doesn’t offer an adaptive cruise control.

The Stelvio Quadrifoglio offers an optional 115-volt a/c outlet in the cargo area, allowing you to recharge a laptop or run small household appliances without special adapters that can break or get misplaced. The X6 M doesn’t offer a house-current electrical outlet.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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