Thus, the 2016 G550. You can literally (yes, actually literally) count the updates on one hand. Under the hood is the new 4.0-liter, twin-turbo V-8. Two-mode adaptive shock absorbers are now an option. There's a new front bumper. It's got new wheels. Finally, it's got a new instrument cluster.

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What matters is the power delivery is still smooth and linear. It's one of the best traits of this engine in any application, and it's true here. The shove in the back you get when you hit the gas is consistent right up the rev range, just like the old engine, but slightly better. Also present and accounted for is a meaty exhaust burble that would otherwise be too loud for a luxury SUV, but the G-Wagen does nothing subtly.

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