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550-hp Twin-Turbo Engine
The AMG 5.5-liter V8 biturbo engine delivers the perfect prerequisites for a
refined ride and performance that is typically AMG. One glance at the technical
data delivers all the evidence you need. The peak output of 550 hp and maximum
torque of 560 lb-ft delivers absolutely first-class performance. The GL63 AMG
accelerates from 0 to 60 mph in 4.9 seconds, while the top speed stands at 155
mph (electronically limited).
The AMG eight-cylinder with the acronym M157 is equipped with an innovative
package of high-tech features that includes spray-guided gasoline direct
injection, piezo injectors, bi-turbocharging, air-water intercooler, a fully
aluminum crankcase, four-valve technology with variable camshafts and alternator
management, plus the ECO stop/start system.
Power delivery to all four permanently driven wheels is handled by the AMG
SPEEDSHIFT 7-Speed automatic transmission. Equipped with three modes and an
automatic double declutching function for downshifting, the seven-speed
automatic offers an impressive degree of versatility. The ECO stop/start
function is active in the Controlled Efficiency mode (C) and switches off the
eight-cylinder engine as soon as the vehicle comes to a standstill. "C" also
comes with a milder throttle and transmission setup with early gearshift.
Pulling away generally takes place in second gear. A green "ECO" symbol in the
AMG instrument cluster advises the driver that the ECO start/stop function is
In the Sport (S) and manual (M) modes, not only is the ECO stop/start function
disabled, the engine/transmission combination also has more spontaneous
reactions for a considerably more agile feel. In these modes, the brief and
precisely defined retardation of ignition and injection during upshift under
full load delivers faster shift times and a thrilling acoustic effect.
Greater Efficiency and Performance
For greater efficiency, the AMG SPEEDSHIFT 7-Speed automatic transmission is
equipped with a highly efficient torque converter with centrifugal pendulum
vibration absorber, friction-reduced bearings and transmission oil temperature
management. Also contributing to reduced fuel consumption are friction-minimized
axle drives, the electromechanical AMG speed-sensitive sports steering,
optimized belt drive and on-demand control of all auxiliary units and pumps.
Mercedes-AMG uses a standalone transfer box for the 4MATIC permanent all-wheel
drive that enhances the dynamic characteristics by splitting the drive 40:60
between the front and rear axles. Furthermore, the AMG RIDE CONTROL sports
suspension with AIRMATIC package, consisting of air suspension, special struts,
automatic self-leveling function and Adaptive Damping System (ADS), is combined
with the ACTIVE CURVE SYSTEM. This is standard equipment and has been
specifically adapted by AMG. It incorporates active anti-roll bars on the front
and rear axles that reduce bodyshell roll angle under cornering for enhanced
agility and driving pleasure. At the same time, the ACTIVE CURVE SYSTEM raises
stability and thus safety, especially at high speeds.
Roll stabilization, springs and damping adapt automatically to the prevailing
driving conditions and offer excellent ride characteristics, as well as
exceptionally high stability. At the touch of a button, the GL63 AMG driver can
choose between two suspension modes "Comfort" and "Sport". The full air
suspension system is speed sensitive and lowers the bodyshell at higher speeds
to minimize drag, while increasing stability.
The AMG-specific elastokinematics on the front axle and the stiffer rear axle
stabilizer deliver even greater steering precision. The reinforced driveline
ensures the best possible transmission of power to the wheels and hallmark
Mercedes reliability. The 4ETS electronic traction control system optimizes grip
under varying surface conditions.
AMG Speed-Sensitive Sports Steering, AMG High-Performance Brake System
The electromechanical AMG speed-sensitive sports steering is equipped with
variable power assistance that adapts in accordance with the selected suspension
mode. This system also helps to save fuel, as the power assistance only consumes
energy when the driver is actually turning the steering wheel. The GL63 AMG runs
as standard on machine polished, twin five-spoke 10 x 21 AMG alloy wheels
sporting 295/40 R21 tires. For the shortest possible braking distances and
excellent fade resistance, there is the AMG high-performance brake system with
ventilated and perforated discs at all four corners - 15.4 x 1.4 inches (front)
and 13.6 x 1.0 inches (rear).
Mercedes-Benz GL63 AMG: Photo Gallery, Review (1/2) and Specifications