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For enhanced safety, the front and rear seat shoulder belts of the Mercedes GLC 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 Buick Envision doesn’t offer pretensioners for the rear seat belts.
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 Envision 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 Envision 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 Envision.
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 Envision doesn’t offer a driver alert monitor.
Both the GLC Coupe and the Envision 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, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available lane departure warning systems, blind spot warning systems, around view monitors and rear cross-path warning.
J.D. Power and Associates rated the GLC Coupe third among compact premium suvs in their 2019 Initial Quality Study. The Envision isn’t in the top three in its category.
From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Mercedes vehicles are more reliable than Buick vehicles. Consumer Reports ranks Mercedes 2 places higher in reliability than Buick.
The GLC Coupe’s 2.0 turbo 4 cyl. produces 58 more horsepower (255 vs. 197) and 81 lbs.-ft. more torque (273 vs. 192) than the Envision’s standard 2.5 DOHC 4 cyl. The GLC Coupe’s 2.0 turbo 4 cyl. produces 3 more horsepower (255 vs. 252) than the Envision Premium’s standard 2.0 turbo 4 cyl.
On the EPA test cycle the GLC 300 Coupe gets better fuel mileage than the Envision Premium AWD turbo 4 cyl. (21 city/28 hwy vs. 20 city/25 hwy).
For better stopping power the GLC Coupe’s brake rotors are larger than those on the Envision:
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 Envision are solid, not vented.
For better traction, the GLC Coupe has larger standard tires than the Envision (235/55R19 vs. 225/60R18). The GLC Coupe’s optional tires are larger than the largest tires available on the Envision (F:255/45R20 & R:285/40R20 vs. 235/50R19).
The GLC Coupe’s standard tires provide better handling because they have a lower 55 series profile (height to width ratio) that provides a stiffer sidewall than the Envision’s standard 60 series tires. The GLC Coupe’s optional 255/45R20 front and 285/40R20 rear tires have a lower 45 series front and 40 series rear profile than the Envision Premium’s 50 series tires.
For better ride, handling and brake cooling the GLC Coupe has standard 19-inch wheels. Smaller 18-inch wheels are standard on the Envision. The GLC Coupe’s optional 20-inch wheels are larger than the 19-inch wheels on the Envision Premium.
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 Envision doesn’t offer run-flat tires.
The GLC Coupe has vehicle speed sensitive variable-assist power steering, for low-effort parking, better control at highway speeds and during hard cornering, and a better feel of the road. The Envision doesn’t offer variable-assist power steering.
For a smoother ride and more stable handling, the GLC Coupe’s wheelbase is 4.8 inches longer than on the Envision (113.1 inches vs. 108.3 inches).
For better handling and stability, the track (width between the wheels) on the GLC Coupe is 1.8 inches wider in the front and 1.7 inches wider in the rear than on the Envision.
For better maneuverability, the GLC 300 Coupe’s turning circle is .8 feet tighter than the Envision Premium’s (38.7 feet vs. 39.5 feet).
A standard locking glovebox (which can’t be accessed with the valet key) keeps your small valuables safer in the GLC Coupe. The Envision doesn’t offer locking storage for small valuables.
The GLC Coupe’s standard towing capacity is much higher than the Envision’s (3500 vs. 1500 pounds).
The engine in the GLC Coupe is mounted longitudinally (North-South), instead of sideways, as in the Envision. This makes it easier to service and maintain, because the accessory belts are in front.
J.D. Power and Associates surveys of service recipients show that Mercedes service is better than Buick. J.D. Power ranks Mercedes fifth in service department satisfaction. With a 13% lower rating, Buick is ranked 8th.
Unlike the driver-only memory system in the Envision Essence/Premium, 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’s front and rear power windows all open or close with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside of the car. The Envision’s passenger windows don’t close automatically.
If the windows are left open on the GLC Coupe 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 also lower the windows the same way. The driver of the Envision can only operate the windows from inside the vehicle, with the ignition on.
The GLC Coupe has a standard locking fuel door with a remote release located convenient to the driver. A locking fuel door helps prevent vandalism, such as sugar in the tank and fuel theft. The Envision doesn’t offer a locking fuel door.
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 Envision’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 Envision doesn’t offer heated windshield washer nozzles.
To help drivers see further while navigating curves, the GLC Coupe offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The Envision doesn’t offer cornering lights.
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 Envision Premium’s automatic parking system requires operating the brakes and transmission to safely park.
The GLC Coupe will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the GLC Coupe will retain 40.57% of its original price after five years, while the Envision only retains 39.59% to 40.17%.
According to The Car Book by Jack Gillis, the GLC Coupe is less expensive to operate than the Envision because it costs $109 less to do the manufacturer’s suggested maintenance for 50,000 miles. Typical repairs cost much less on the GLC Coupe than the Envision, including $419 less for a timing belt/chain.
Motor Trend selected the GLC Coupe as their 2017 Sport Utility of the Year. The Envision has never been chosen.
The Mercedes GLC outsold the Buick Envision by over two to one during the 2019 model year.
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