2020 Jeep Grand Cherokee SRT vs. 2019 Mercedes G-Class

Detailed Review, Specifications & Comparison

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Safety

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The Grand Cherokee SRT has standard Active Head Restraints, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the Active Head Restraints system moves the headrests forward to prevent neck and spine injuries. The G-Class doesn’t offer a whiplash protection system.

For better protection of the passenger compartment, the Grand Cherokee SRT uses safety cell construction with a three-dimensional high-strength frame that surrounds the passenger compartment. It provides extra impact protection and a sturdy mounting location for door hardware and side impact beams. The G-Class uses a body-on-frame design, which has no frame members above the floor of the vehicle.

Both the Grand Cherokee SRT and the G-Class have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, all-wheel drive, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras and rear cross-path warning.

Warranty

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Jeep’s powertrain warranty covers the Grand Cherokee SRT 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.

There are over 6 times as many Jeep dealers as there are Mercedes dealers, which makes it much easier should you ever need service under the Grand Cherokee SRT’s warranty.

Reliability

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The Jeep Grand Cherokee SRT’s engine uses a cast iron block for durability, while the G-Class’ engines use an aluminum block. Aluminum engine blocks are much more prone to warp and crack at high temperatures than cast iron.

Engine

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The Grand Cherokee SRT’s 6.4 V8 produces 59 more horsepower (475 vs. 416) and 20 lbs.-ft. more torque (470 vs. 450) than the G 550’s standard 4.0 turbo V8.

As tested in Motor Trend the Jeep Grand Cherokee SRT is faster than the G 550:

Grand Cherokee SRT

G-Class

Zero to 60 MPH

4.4 sec

5.4 sec

Quarter Mile

13.1 sec

14.1 sec

Speed in 1/4 Mile

103.6 MPH

98.4 MPH

Fuel Economy and Range

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On the EPA test cycle the Grand Cherokee SRT gets better fuel mileage than the G 550 (13 city/19 hwy vs. 13 city/17 hwy).

The Grand Cherokee SRT has a standard cap-less fueling system. The fuel filler is automatically opened when the fuel nozzle is inserted and automatically closed when it’s removed. This eliminates the need to unscrew and replace the cap and it reduces fuel evaporation, which causes pollution. The G-Class doesn’t offer a cap-less fueling system.

Brakes and Stopping

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For better stopping power the Grand Cherokee SRT’s brake rotors are larger than those on the G-Class:

Grand Cherokee SRT

G-Class

Front Rotors

15 inches

13.9 inches

Rear Rotors

13.8 inches

13.6 inches

The Grand Cherokee SRT stops much shorter than the G-Class:

Grand Cherokee SRT

G-Class

60 to 0 MPH

106 feet

136 feet

Motor Trend

Tires and Wheels

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For better traction, the Grand Cherokee SRT has larger tires than the G-Class (295/45R20 vs. 275/55R19).

The Grand Cherokee SRT’s tires provide better handling because they have a lower 45 series profile (height to width ratio) that provides a stiffer sidewall than the G-Class’ standard 55 series tires. The Grand Cherokee SRT’s tires are lower profile than the G-Class’ optional 50 series tires.

For better ride, handling and brake cooling the Grand Cherokee SRT has standard 20-inch wheels. Smaller 19-inch wheels are standard on the G-Class.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the Grand Cherokee SRT can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The G-Class doesn’t offer run-flat tires.

Suspension and Handling

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For superior ride and handling, the Jeep Grand Cherokee SRT 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.

For better handling and stability, the track (width between the wheels) on the Grand Cherokee SRT is 1.2 inches wider in the front and .3 inches wider in the rear than on the G-Class.

The Grand Cherokee SRT handles at .88 G’s, while the G 550 pulls only .61 G’s of cornering force in a Motor Trend skidpad test.

The Grand Cherokee SRT executes Motor Trend’s “Figure Eight” maneuver 4.9 seconds quicker than the G 550 (25.8 seconds @ .71 average G’s vs. 30.7 seconds @ .53 average G’s).

For better maneuverability, the Grand Cherokee SRT’s turning circle is 6.6 feet tighter than the G-Class’ (38 feet vs. 44.6 feet).

Chassis

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The Jeep Grand Cherokee SRT may be more efficient, handle and accelerate better because it weighs about 450 pounds less than the Mercedes G-Class.

The Grand Cherokee SRT is 9.3 inches shorter in height than the G-Class, making the Grand Cherokee SRT much easier to wash and garage and drive (lower center of gravity).

Unibody construction lowers the Grand Cherokee SRT’s center of gravity significantly without reducing ground clearance. This contributes to better on the road handling and better off-road performance and stability. In addition, unibody construction makes the chassis stiffer, improving handling and reducing squeaks and rattles. The G-Class uses body-on-frame design instead.

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

The Grand Cherokee SRT uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The G-Class doesn’t offer active noise cancellation.

Passenger Space

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The Grand Cherokee SRT has 1.6 inches more front legroom, .9 inches more front shoulder room and .6 inches more rear shoulder room than the G-Class.

Cargo Capacity

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The Grand Cherokee SRT’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, especially for short adults, the Grand Cherokee SRT has a standard power liftgate, which opens and closes automatically by pressing a button. The G-Class doesn’t offer a power cargo door.

Ergonomics

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The Grand Cherokee SRT’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.

To improve rear visibility by keeping the rear window clear, the Grand Cherokee SRT 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.

The Grand Cherokee SRT has a standard heated steering wheel to take the chill out of steering on extremely cold winter days before the vehicle heater warms up. A heated steering wheel costs extra on the G-Class.

Economic Advantages

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Insurance will cost less for the Grand Cherokee SRT owner. The Complete Car Cost Guide estimates that insurance for the Grand Cherokee SRT will cost $7620 less than the G-Class over a five-year period.

The Grand Cherokee SRT will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the Grand Cherokee SRT will retain 53.84% of its original price after five years, while the G-Class only retains 43.42%.

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Jeep Grand Cherokee SRT will be $56150 less than for the Mercedes G-Class.

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

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