The all new Mercedes G63 powered by an AMG-built, 4.0-liter, twin-turbocharged V7, pumping out 577 horsepower and 627 pound-feet of torque. Most importantly steering wheel and suspension has been replaced by a more traditional, electronically assisted rack-and-pinion system, so the G63 reliably goes in the direction I point it. This more modern steering setup even has two different modes: Comfort feels a bit too light for a vehicle this large, but Sport adds an appropriate amount of weight, and it's my preferred setting for all situations.
Another big improvement is the independent front suspension. The cold, hard fact is that most G-Wagen owners stay far away from the dirt, and an independent setup provides a much more comfortable ride.
The AMG G63 has drive modes for Slippery, Comfort, Sport, Sport+ and Individual, but I spend most of my time in Sport+ for maximum throttle response, the stiffest suspension and the snappiest shifts. It's an intoxicating experience; the G63 rears up when I mash my foot on the accelerator, the V8 engine and side-exit exhaust roaring and crackling.
Source: Road | Show CNET