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The GLC Coupe’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Passport doesn’t offer pre-crash pretensioners.
The GLC Coupe has standard NECK-PRO front head restraints, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the NECK-PRO front head restraints system moves the headrests forward to prevent neck and spine injuries. The Passport doesn’t offer a whiplash protection system.
To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the GLC Coupe. But it costs extra on the Passport.
The GLC Coupe offers an optional Surround View System to allow the driver to see objects all around the vehicle on a screen. The Passport 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.
The GLC 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 Passport doesn’t offer a driver alert monitor.
Both the GLC Coupe and the Passport have standard driver and passenger frontal airbags, side-impact head airbags, height-adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, available lane departure warning systems, blind spot warning systems and rear cross-path warning.
The GLC Coupe comes with a full 4-year/50,000-mile basic warranty, which covers the entire truck and includes 24-hour roadside assistance. The Passport’s 3-year/36,000-mile basic warranty expires 1 year and 14,000 miles sooner.
A hardened steel chain, with no maintenance needs, drives the camshafts in the GLC Coupe’s engine. A rubber cam drive belt that needs periodic replacement drives the Passport’s camshafts. If the Passport’s belt breaks, the engine could be severely damaged when the pistons hit the opened valves.
To reliably power the ignition and other systems and to recharge the battery, the GLC Coupe has a standard 150-amp alternator. The Passport’s 130-amp alternator isn’t as powerful.
J.D. Power and Associates rated the GLC Coupe third among compact premium suvs in their 2019 Initial Quality Study. The Passport isn’t in the top three in its category.
J.D. Power and Associates’ 2019 Initial Quality Study of new car owners surveyed provide the statistics that show that Mercedes vehicles are better in initial quality than Honda vehicles. J.D. Power ranks Mercedes 12th in initial quality. With 4 more problems per 100 vehicles, Honda is ranked 16th.
J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Mercedes vehicles are more reliable than Honda vehicles. J.D. Power ranks Mercedes 13th in reliability, above the industry average. With 12 more problems per 100 vehicles, Honda is ranked 16th.
The GLC Coupe’s 2.0 turbo 4 cyl. produces 11 lbs.-ft. more torque (273 vs. 262) than the Passport’s 3.5 SOHC V6.
On the EPA test cycle the GLC 300 Coupe gets better fuel mileage than the Passport AWD (21 city/28 hwy vs. 19 city/24 hwy).
For better stopping power the GLC Coupe’s front brake rotors are larger than those on the Passport:
The GLC Coupe’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs on the Passport are solid, not vented.
The GLC Coupe’s optional 285/40R20 rear tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the Passport Touring/Elite’s 45 series tires.
Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the GLC Coupe can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The Passport doesn’t offer run-flat tires.
The GLC Coupe has standard front and rear gas-charged shocks for better control over choppy roads. The Passport’s suspension doesn’t offer gas-charged shocks.
The GLC 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 Passport doesn’t offer drift compensation steering.
For a smoother ride and more stable handling, the GLC Coupe’s wheelbase is 2.2 inches longer than on the Passport (113.1 inches vs. 110.9 inches).
The GLC 300 Coupe executes Motor Trend’s “Figure Eight” maneuver quicker than the Passport Elite AWD (27.6 seconds @ .63 average G’s vs. 28.1 seconds @ .62 average G’s).
For better maneuverability, the GLC 300 Coupe’s turning circle is .6 feet tighter than the Passport AWD’s (38.7 feet vs. 39.3 feet). The GLC 300 Coupe’s turning circle is .8 feet tighter than the Passport’s (38.7 feet vs. 39.5 feet).
The GLC Coupe is 3.8 inches shorter than the Passport, making the GLC Coupe easier to handle, maneuver and park in tight spaces.
The GLC Coupe is 8.5 inches shorter in height than the Passport, making the GLC Coupe much easier to wash and garage and drive (lower center of gravity).
The GLC Coupe uses gas struts to support the hood for easier service access. The Passport uses a prop rod to support its heavy hood. It takes two hands to open the hood and set the prop rod, the prop rod gets in the way during maintenance and service, and the prop rod could be knocked out, causing the heavy hood to fall on the person maintaining or servicing the car.
The engine in the GLC Coupe is mounted longitudinally (North-South), instead of sideways, as in the Passport. This makes it easier to service and maintain, because there are no rear spark plugs and the accessory belts are in front.
J.D. Power and Associates surveys of service recipients show that Mercedes service is better than Honda. J.D. Power ranks Mercedes fifth in service department satisfaction. With a 55% lower rating, Honda is ranked 23rd.
Unlike the driver-only memory system in the Passport EX-L/Touring/Elite, the GLC Coupe offers an optional passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.
The GLC Coupe offers an optional heads-up display that projects speed 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 Passport doesn’t offer a heads-up display.
The power windows standard on both the GLC Coupe and the Passport have locks to prevent small children from operating them. When the lock on the GLC Coupe is engaged the driver can still operate all of the windows, for instance to close one opened by a child. The Passport prevents the driver from operating the other windows just as it does the other passengers.
The GLC Coupe’s front and rear power windows all open or close fully with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside the car. The Passport’s rear power window switches have to be held the entire time to open or close them fully.
The GLC Coupe’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The Passport’s standard manually variable intermittent wipers have to be constantly adjusted.
Heated windshield washer nozzles are standard on the GLC Coupe to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The Passport doesn’t offer heated windshield washer nozzles.
The GLC Coupe’s standard outside mirrors include heating elements to clear off the mirrors for better visibility. Honda only offers heated mirrors on the Passport EX-L/Touring/Elite.
The GLC Coupe’s power mirror controls are mounted on the armrest for easy access. The Passport’s power mirror controls are on the dash where they are possibly hidden by the steering wheel and are awkward to manipulate.
The GLC Coupe’s optional Active Parking Assist can parallel park or back into a parking spot by itself, starting and stopping automatically, with the driver only responsible for switching from reverse to drive. The Passport doesn’t offer an automated parking system.
Motor Trend selected the GLC Coupe as their 2017 Sport Utility of the Year. The Passport has never been chosen.
The Mercedes GLC outsold the Honda Passport by almost three to one during the 2019 model year.
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