Engine and Transmission Rating: Engine and Transmission

Engine and Transmission

The powertrains in the G63 and G65 are impressive exercises in brute force, and we applaud AMG for its use of large-displacement engines in both the twin-turbocharged 5.5-liter V-8 G63 and the twin-turbo 6.0-liter V-12 G65. Both pair with a seven-speed automatic transmission that is too eager to seek higher gears at times but shifts quickly, preventing it from feeling too clunky.

What’s New for 2018?

Those who want a top-heavy SUV with either 563 or 621 ponies pumping through a structure that was first designed 40 years ago will get their wish here. Both the G63 and G65 carry the same powertrain and drivetrain components for 2018. While Mercedes has already announced that the next-gen G63 will get a 577-hp 4.0-liter V-8, the company has not yet released details on the inevitable G65 version.

Test Results: Acceleration

Engine and Transmission

For more information on the G63 and G65’s engines and transmissions, you can read our in-depth review of the 2017 models.

Engine and Transmission

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