2021 GMC Yukon XL vs. 2020 Mercedes G-Class

Detailed Review, Specifications & Comparison

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Safety

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/08/05

In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the Yukon XL are reminded to check the back seat if they opened the rear door before starting out. The G-Class doesn’t offer a back seat reminder.

The Yukon XL has a standard front seat center airbag, which deploys between the driver and front passenger, protecting them from injuries caused by striking each other in serious side impacts. The G-Class doesn’t offer front seat center airbags.

The Yukon XL (except SLE) offers an optional HD Surround Vision to allow the driver to see objects all around the vehicle on a screen. The G-Class 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.

Both the Yukon XL and the G-Class have standard driver and passenger frontal airbags, front side-impact 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 all wheel drive, lane departure warning systems, blind spot warning systems and rear cross-path warning.

Warranty

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GMC’s powertrain warranty covers the Yukon XL 1 year and 10,000 miles longer than Mercedes covers the G-Class. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 5 years or 60,000 miles. Coverage on the G-Class ends after only 4 years or 50,000 miles.

The Yukon XL’s corrosion warranty is 1 year longer than the G-Class’ (6 vs. 5 years).

There are over 4 times as many GMC dealers as there are Mercedes dealers, which makes it much easier should you ever need service under the Yukon XL’s warranty.

Engine

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The Yukon XL Denali’s standard 6.2 V8 produces 4 more horsepower (420 vs. 416) and 10 lbs.-ft. more torque (460 vs. 450) than the G 550’s standard 4.0 turbo V8.

Fuel Economy and Range

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On the EPA test cycle the Yukon XL gets better fuel mileage than the G-Class:

MPG

Yukon XL

RWD

5.3 OHV V8

16 city/20 hwy

6.2 OHV V8

15 city/20 hwy

AWD

5.3 OHV V8

15 city/19 hwy

6.2 OHV V8

14 city/19 hwy

G-Class

AWD

550 4.0 turbo V8

13 city/17 hwy

AMG 63 4.0 turbo V8

13 city/15 hwy

To lower fuel costs and make buying fuel easier, the GMC Yukon XL uses regular unleaded gasoline (premium recommended on Yukon XL Denali for maximum performance). The G-Class requires premium, which can cost 20 to 55 cents more per gallon.

Transmission

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A 10-speed automatic is standard on the GMC Yukon XL, for better acceleration and lower engine speed on the highway. Only a nine-speed automatic is available for the G-Class.

Tires and Wheels

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The GMC Yukon XL’s wheels have 6 lugs for longer wheel bearing life, less chance of rotor warping and greater strength. The Mercedes G-Class only has 5 wheel lugs per wheel.

The Yukon XL has a standard easy tire fill system. When inflating the tires, the vehicle’s integrated tire pressure sensors keep track of the pressure as the tires fill and tell the driver when the tires are inflated to the proper pressure. The G-Class doesn’t offer vehicle monitored tire inflation.

Suspension and Handling

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For superior ride and handling, the GMC Yukon XL has fully independent front and rear suspensions. An independent suspension allows the wheels to follow the road at the best angle for gripping the pavement, without compromising ride comfort. The Mercedes G-Class has a solid rear axle, with a non-independent rear suspension.

The Yukon XL AT4/Denali has a standard automatic load leveling suspension to keep ride height level with a heavy load or when towing. The G-Class doesn’t offer a load leveling suspension.

For a smoother ride and more stable handling, the Yukon XL’s wheelbase is 20.3 inches longer than on the G-Class (134.1 inches vs. 113.8 inches).

Chassis

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For excellent aerodynamics, the Yukon XL has standard flush composite headlights. The G-Class has recessed headlights that spoil its aerodynamic shape and create extra drag.

The front grille of the Yukon XL uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The G-Class doesn’t offer active grille shutters.

Passenger Space

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The Yukon XL offers optional seating for 9 passengers; the G-Class can only carry 5.

The Yukon XL has 63.8 cubic feet more passenger volume than the G-Class (170.8 vs. 107).

The Yukon XL has .4 inches more front headroom, 5.8 inches more front legroom and 2.5 inches more rear legroom than the G-Class.

Cargo Capacity

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The Yukon XL’s cargo area provides more volume than the G-Class.

Yukon XL

G-Class

Third Seat Folded

93.8 cubic feet

n/a

Third Seat Removed

n/a

38.1 cubic feet

Second Seat Folded

144.7 cubic feet

68.6 cubic feet

Pressing a switch automatically lowers the Yukon XL’s (except SLE) optional second and third row seats, to make changing between passengers and cargo easier. The G-Class doesn’t offer automatic folding second row seats.

The Yukon XL’s liftgate lifts up in one piece, completely out of the way of loading and unloading, while sheltering the cargo loading area. The G-Class’ swing out door blocks loading from the driver’s side.

To make loading and unloading groceries and cargo easier when your hands are full, the Yukon XL SLT/AT4/Denali’s power cargo door can be opened or closed just by kicking your foot under the back bumper, leaving your hands completely free. The G-Class doesn’t offer a power or hands-free opening cargo door.

Towing

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The Yukon XL 4WD with optional equipment can be flat towed on all four wheels (dinghy towed), allowing recreational vehicle owners to bring it with them on the road. When they reach their destination, the Yukon XL can be unhitched and driven around locally. The G-Class can’t be towed flat on the ground.

Ergonomics

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The Yukon XL’s instruments include an oil pressure gauge and a temperature gauge - which could save your engine! Often ‘idiot lights’ don’t warn you until damage has been done. The G-Class does not have an oil pressure gauge.

The Yukon XL (except SLE/SLT) offers an available heads-up display that projects speed and other key instrumentation readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The G-Class doesn’t offer a heads-up display.

To improve rear visibility by keeping the rear window clear, the Yukon XL has a standard rear fixed intermittent wiper with a full on position. The rear wiper standard on the G-Class only has an intermittent setting, so in a hard rain visibility isn’t as good.

To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the Yukon XL has standard extendable sun visors. The G-Class doesn’t offer extendable visors.

Model Availability

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/08/05

The Yukon XL is available in both rear-wheel drive and four-wheel drive configurations. The G-Class doesn’t offer a two-wheel drive configuration.

Recommendations

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/08/05

The GMC Yukon/Yukon XL outsold the Mercedes G-Class by over 10 to one during 2019.

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