2019 Mercedes AMG GLC 63 Coupe vs. 2019 BMW X6 M

Detailed Review, Specifications & Comparison

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Safety

For enhanced safety, the front and rear seat shoulder belts of the Mercedes AMG GLC 63 Coupe 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 BMW X6 M doesn’t offer pretensioners for the rear seat belts.

For enhanced safety, the front seat shoulder belts of the Mercedes AMG GLC 63 Coupe 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.

Both the AMG GLC 63 Coupe and the X6 M have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, 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, available lane departure warning systems and around view monitors.

Warranty

There are over 10 percent more Mercedes dealers than there are BMW dealers, which makes it easier should you ever need service under the AMG GLC 63 Coupe’s warranty.

Engine

As tested in Motor Trend the AMG GLC63 S Coupe is faster than the BMW X6 M:

AMG GLC 63

X6 M

Zero to 60 MPH

3.2 sec

3.7 sec

Quarter Mile

11.7 sec

12.1 sec

Speed in 1/4 Mile

116.5 MPH

114.3 MPH

Fuel Economy and Range

On the EPA test cycle the AMG GLC 63 Coupe gets better fuel mileage than the X6 M:

MPG

AMG GLC 63 Coupe

4.0 turbo V8

16 city/22 hwy

S 4.0 turbo V8

16 city/22 hwy

X6 M

4.4 turbo V8

14 city/19 hwy

Environmental Friendliness

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Mercedes AMG GLC 63 Coupe higher (5 out of 10) than the BMW X6 M (3). This means the AMG GLC 63 Coupe produces up to 16.5 pounds less smog-producing pollutants than the X6 M every 15,000 miles.

Transmission

A nine-speed automatic is standard on the Mercedes AMG GLC 63 Coupe, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the X6 M.

Brakes and Stopping

For better stopping power the AMG GLC63 S Coupe’s front brake rotors are larger than those on the X6 M:

AMG GLC63 S

X6 M

Front Rotors

15.8 inches

15.6 inches

The AMG GLC 63 Coupe S 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.

Suspension and Handling

The front and rear suspension of the AMG GLC 63 Coupe uses air springs for a smoother, controlled ride than the X6 M, which uses coil springs in front. Air springs maintain proper ride height and ride more smoothly.

The AMG GLC 63 Coupe’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 X6 M doesn’t offer drift compensation steering.

For better maneuverability, the AMG GLC 63 Coupe’s turning circle is 2.3 feet tighter than the X6 M’s (39.7 feet vs. 42 feet).

Chassis

The Mercedes AMG GLC 63 Coupe may be more efficient, handle and accelerate better because it weighs about 650 to 700 pounds less than the BMW X6 M.

The AMG GLC 63 Coupe is 7 inches shorter than the X6 M, making the AMG GLC 63 Coupe easier to handle, maneuver and park in tight spaces.

As tested by Car and Driver, the interior of the AMG GLC63 S Coupe is quieter than the X6 M:

AMG GLC 63 Coupe

X6 M

At idle

40 dB

48 dB

Full-Throttle

78 dB

88 dB

70 MPH Cruising

67 dB

70 dB

Passenger Space

The AMG GLC 63 Coupe has .5 inches more front legroom and 1.7 inches more rear legroom than the X6 M.

For enhanced passenger comfort on long trips the AMG GLC 63 Coupe’s rear seats recline. The X6 M’s rear seats don’t recline.

Cargo Capacity

Pressing a switch automatically lowers the AMG GLC 63 Coupe’s rear seats, to make changing between passengers and cargo easier. The X6 M doesn’t offer automatic folding seats.

Servicing Ease

J.D. Power and Associates surveys of service recipients show that Mercedes service is better than BMW. J.D. Power ranks Mercedes fifth in service department satisfaction. With a 23% lower rating, BMW is ranked 11th.

Ergonomics

The AMG GLC 63 Coupe has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The X6 M doesn’t offer a remote starting system.

To keep a safe, consistent following distance, the AMG GLC 63 Coupe offers an optional Distronic Plus, 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 AMG GLC 63 Coupe has a 115-volt a/c outlet, 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.

Model Availability

The Mercedes AMG GLC 63 comes in traditional 4-door sport utility and 4-door coupe bodystyles; the BMW X6 M isn’t available as a traditional sport utility.

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

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