A Model Change That Preserves What Matters

“G-Class” had been rumored to be changing for so long that its transformation was met with great anticipation.

Indeed, the new model unveiled at the North American International Auto Show in Detroit in early 2018new modelwas surprisingly similar in appearance to its predecessor.

At the Geneva International Motor Show in March, the Mercedes-AMG G63 made its debut. But what is it like to actually drive? My curiosity piqued, this test drive event was highly significant for me.

If I had to summarize the new G-Class in one word, it would be a model change that preserves what matters.

The ladder-frame chassis has been retained. Reinforcements have been added, particularly around the rear wheels and the section behind them, known as the C and D rings, increasing torsional rigidity by 50 percent compared to the previous generation.

The suspension has also been modified; while the rear remains a rigid five-link setup, the front is now independent. Mercedes-Benz states this is to improve handling.

The differential lock mechanisms—three in total, front, rear, and center—and the low-range gear setting are also carried over from the previous generation.

“As long as we have this combination, there’s no need to unnecessarily incorporate electronic control systems,” says Dr. Gunnar Guthenke, the responsible party at Mercedes-Benz.

He further explained that they were also committed to preserving the design image of the previous generation.

Even listing them, the list is endless: the boxy body, round headlights, turn signals on the fenders, push-button door handles, external door hinges, and the spare tire mounted on the rear.

“Nevertheless, we have brought them up to modern standards. For example, the turn signals are designed to retract into the body upon impact to protect pedestrians in a collision,” he explained.

The rearview camera, previously located above the rear window, has been moved below the spare tire in response to user feedback that it was “easily soiled and difficult to use.”

It Feels Like Driving a Comfortable Sedan

The most noticeable change is apparent the moment you start driving: the ride comfort and handling. It's supple, and the distinct feeling of the chassis and body moving independently, as in the past, is gone.

It feels solid and integrated. The steering response is excellent, and the body's movement during cornering is controlled in a manner befitting a passenger car.

I first drove the Mercedes-AMG G63 on rural roads and highways in the South of France, and then the Mercedes-Benz G500. My overall impression was the same for both.

It even feels like driving a comfortable sedan. Both models are equipped with a 4-liter V8 engine paired with a 9-speed automatic transmission.

While the G500 produces a maximum output of 310 kW (422 hp) and 610 Nm of torque, the G63 boasts 430 kW (585 hp) and 850 Nm. The transmission also features AMG's unique tuning. The G63 is like a sporty sedan.

The accelerator pedal requires light pressure, and the engine's response, with its high torque, is remarkably quick on-road. The brakes are also very effective. It's astonishing how much the G-Class has improved.

Cabin noise is also low. The windshield and side windows are almost perfectly flat (though not entirely), but aerodynamic devices around the A-pillars and roof, as well as sound-deadening material at the front of the roof, are effective.

Wind noise is lower than expected. While the G63 allows you to hear its powerful exhaust note, the overall cabin is remarkably quiet. With the optional Burmester audio system installed, I could fully enjoy music during the test drive.

The interior space has been expanded compared to the previous generation, making it feel quite modern. While the grab handle, a characteristic feature of the previous model, remains on the passenger side, the turbine-style air vents and the large dual TFT displays are decidedly contemporary.

“The background of this model change included improving efficiency through weight reduction, as well as incorporating infotainment and driver-assistance systems,”

an engineer told me at the test drive venue. The driving position is now more conventional, and the seats offer excellent comfort and support. The interior boasts the latest in comfort features.

The new G-Class is a formidable high-speed cruiser. Fatigue would likely be minimal even on long journeys, and the driving experience itself is enjoyable. This is truly where the new model excels.

Impressed by its Dual Capability On and Off-Road

On the other hand, off-road capability was also a key focus during development. I recalled the words of Ola Källenius, head of Mercedes-Benz development: “The G is always a G. It just gets better.”

The test drive took place at a winery called Château de Lastours. The owner, a motorsports enthusiast, had modified parts of the estate to create a 90 km course.

This course is currently used for Dakar Rally practice and is also visited by companies like Mercedes-Benz for testing their vehicles.

The G-Class is developed and produced in Graz, Austria, and tested on nearby mountains (sometimes crossing public roads on incredibly challenging courses). However, the terrain at Château de Lastours was different.

With rocky sections, gravel, sand, and even deep puddles, both the new G500 and G63 could navigate the course with complete freedom.

The G63 offers three off-road driving programs: "Trail," "Sand," and "Rock." After locking the center differential, these are selected using the "Dynamic Select" control.

In "Trail" mode, power delivery is "milder," the suspension is set to "Trail," and the steering to "Off-road." In "Sand" mode, the suspension adjusts to "Sand," and the steering becomes "Sporty."

The differences between the three modes are quite significant, especially the feel of the steering wheel. The off-road capability is high; descending a steep, rocky slope that felt like it could lead to a tumble, I was impressed by its dual nature, thinking, “I was just speeding on the highway moments ago.”

The G500 does not have these preset off-road modes, but it features a "G Mode" linked to the differential lock switches or the transfer case's low-range gear.

When "G Mode" is activated because low-range is selected, the suspension damping, steering characteristics, and accelerator pedal response are optimized for rough terrain.

The vehicle moves slowly but surely, gripping the ground firmly with its tires even in tight spaces, and steadily advancing forward.

When ascending a steep slope where the driver can only see the sky, the front-view camera can be used to check the terrain.

Its Rival: The Range Rover

I'm not sure if G500 owners will actually drive like this in real life, but experiencing it undoubtedly increases trust in the vehicle and makes you love it even more.

When considering a vehicle that can handle both on-road and off-road conditions, has a large displacement engine, and looks good with a suit, the Range Rover comes to mind. Mercedes-Benz developers admit, “We were certainly conscious of it.”

A unique characteristic of the G-Class is its lack of features like Hill Descent Control, which operate with a single button.

“We considered it during development, but concluded that the low-range gear and the three differential locks, which can be engaged even while driving, are sufficient,”

said the G-Class developer. When descending a steep slope, you can rely on the low-range torque alone to proceed with confidence and power, even with your foot off the accelerator pedal.

The new G-Class, with its all-around capability that allows it to go anywhere, is the ultimate cross-country 4WD.