2019 Mercedes AMG GLC 63 Coupe vs. 2019 Bentley Bentayga

Detailed Review, Specifications & Comparison

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Safety

The AMG GLC 63 Coupe’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Bentayga doesn’t offer pre-crash pretensioners.

The AMG GLC 63 Coupe’s 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 Bentayga doesn’t offer a driver alert monitor.

The AMG GLC 63 Coupe has standard Mercedes-Benz Emergency Call, 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 Bentayga 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 AMG GLC 63 Coupe and the Bentayga have standard driver and passenger frontal airbags, front side-impact 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, daytime running lights, blind spot warning systems, rearview cameras, available lane departure warning systems and around view monitors.

Warranty

The AMG GLC 63 Coupe comes with a full 4-year/50,000-mile basic warranty, which covers the entire truck and includes 24-hour roadside assistance. The Bentayga’s 3-year basic warranty expires 1 year sooner.

The AMG GLC 63 Coupe’s corrosion warranty is 2 years longer than the Bentayga’s (5 vs. 3 years).

There are over 8 times as many Mercedes dealers as there are Bentley dealers, which makes it much 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 Bentley Bentayga 12 cyl.:

AMG GLC 63

Bentayga

Zero to 60 MPH

3.2 sec

3.5 sec

Quarter Mile

11.7 sec

11.9 sec

Fuel Economy and Range

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

MPG

AMG GLC 63 Coupe

4.0 turbo V8

16 city/22 hwy

S 4.0 turbo V8

16 city/22 hwy

Bentayga

4.0 turbo V8

14 city/23 hwy

6.0 turbo W12

14 city/20 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 Bentley Bentayga (3). This means the AMG GLC 63 Coupe produces up to 16.5 pounds less smog-producing pollutants than the Bentayga 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 Bentayga.

The AMG GLC 63 Coupe’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 Bentayga doesn’t offer launch control.

Brakes and Stopping

The AMG GLC 63 Coupe stops much shorter than the Bentayga:

AMG GLC 63

Bentayga

70 to 0 MPH

158 feet

195 feet

Car and Driver

60 to 0 MPH

105 feet

119 feet

Motor Trend

Tires and Wheels

For better traction and acceleration, the AMG GLC 63 Coupe has larger rear tires than the Bentayga (295/40R20 vs. 275/50R20). The AMG GLC 63 Coupe’s rear tires are larger than the largest rear tires available on the Bentayga (295/40R20 vs. 285/45R21).

The AMG GLC 63 Coupe’s standard 265/45R20 front and 295/40R20 rear tires provide better handling because they have a lower 45 series front and 40 series rear profile (height to width ratio) that provides a stiffer sidewall than the Bentayga’s standard 50 series tires. The AMG GLC 63 Coupe’s optional 295/35R21 rear tires have a lower 35 series profile than the Bentayga’s optional 40 series tires.

Suspension and Handling

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 Bentayga doesn’t offer drift compensation steering.

The AMG GLC 63 Coupe’s front to rear weight distribution is more even (55.1% to 44.9%) than the Bentayga’s (57.5% to 42.5%). This gives the AMG GLC 63 Coupe more stable handling and braking.

The AMG GLC63 S Coupe handles at .94 G’s, while the Bentayga pulls only .78 G’s of cornering force in a Car and Driver skidpad test.

The AMG GLC63 S Coupe executes Motor Trend’s “Figure Eight” maneuver 1.5 seconds quicker than the Bentayga (24.1 seconds @ .85 average G’s vs. 25.6 seconds @ .74 average G’s).

For better maneuverability, the AMG GLC 63 Coupe’s turning circle is .9 feet tighter than the Bentayga’s (39.7 feet vs. 40.6 feet).

Chassis

The Mercedes AMG GLC 63 Coupe may be more efficient, handle and accelerate better because it weighs about 800 to 850 pounds less than the Bentley Bentayga.

The AMG GLC 63 Coupe is 1 foot, 3.6 inches shorter than the Bentayga, making the AMG GLC 63 Coupe easier to handle, maneuver and park in tight spaces.

As tested by Car and Driver while at idle, the interior of the AMG GLC63 S Coupe is quieter than the Bentayga (40 vs. 44 dB).

Cargo Capacity

The AMG GLC 63 Coupe’s standard rear seats fold to accommodate long and bulky cargo. The Bentayga w/Four Seat Comfort Specification doesn’t offer folding rear seats, only a ski pass-through.

Ergonomics

Heated windshield washer nozzles are standard on the AMG GLC 63 Coupe to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The Bentayga doesn’t offer heated windshield washer nozzles.

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 Bentayga 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 Bentley Bentayga isn’t available as a coupe style sport utility.

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

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