
The latest Mercedes-Benz G-Class engine: 4.0T-V8, 585 horsepower, length-width-height (mm): 4873-1984-1966, transmission type: 9-speed automatic transmission. Metric horsepower: Metric horsepower, also known as PS, is completely man-made with a value very close to imperial horsepower. It is defined as 1 metric horsepower being the power required to lift 75 kilograms one meter in one second. That is: 1 metric horsepower = 75 kilogram-force meters/second = 735 watts. Imperial horsepower: The concept of horsepower as a unit was named by James Watt, the improver of the steam engine, to represent the power of his steam engine relative to a horse's pulling power. It is defined as "the power of a horse capable of pulling 33,000 pounds at a speed of one foot per minute", with watt (W) or kilowatt (kW) being the standard units.

I previously drove the latest G-Class, and its power is truly impressive. The G500 comes standard with a 4.0-liter V8 biturbo engine producing 421 horsepower, making city overtaking effortless. The AMG G63 is even more powerful, with 585 horsepower paired with a nine-speed transmission—stepping on the throttle gives you a rollercoaster-like pushback. But honestly, the fuel consumption is staggering, averaging at least 18 L/100km in the city. Last year, my friend tuned the ECU to push it to 630 horsepower, but I’d advise against random modifications since the factory tuning is the most balanced. Low-end torque is especially crucial for off-roading, and the G-Class has never disappointed in this aspect.

As someone who frequently drives long distances, I've tested the performance of the G-Class on various road conditions. The standard G350 diesel version with 286 horsepower might feel a bit underwhelming, but the G500's 421 horsepower is more than sufficient. Last month, I took my friend's G63 for a mountain run—with 585 horsepower and four-wheel drive, it shot forward as soon as the revs hit 4000 rpm coming out of a corner. However, be aware that higher horsepower demands better braking; the stock six-piston calipers are necessary to handle it. It's also best to switch to all-terrain (AT) tires, otherwise, the 600 Nm torque can easily cause slippage in wet conditions.

Having worked on cars for over a decade and handled various G-Class models, here's some practical insight. The old G500 with a 5.5L V8 produced 388 horsepower, while the current 4.0T engine is 90kg lighter yet delivers 421hp. The most extreme is the G63 AMG – 585hp, 0-100km/h in 4.5 seconds, like a sports car. But a reminder to owners: don't get fooled by horsepower. This vehicle weighs 2.6 tons, with drivetrain efficiency about 15% lower than sedans. For regular maintenance, remember to frequently change differential oil – high-power models wear out rear axles faster.


