2025 Mercedes-AMG GT 63 S E Performance 4-door - USA version

For direct cooling, the AMG team had to develop new cooling modules of millimetric thickness. Around 4 gallons of coolant circulate from top to bottom through the entire battery, past each cell, with the help of a specially developed high-performance electric pump. In the process, the coolant also flows through an oil/water heat exchanger attached directly to the battery. This conducts the heat into one of the two low-temperature circuits (LT) of the vehicle. From there, it goes on to the LT cooler at the front of the car, which dissipates heat into the outside air. The system is designed to ensure even heat distribution in the battery.

The result is the battery is always within a consistent, optimum operating temperature window averaging 113 degrees Fahrenheit, no matter how often it is charged or discharged. Should this average temperature be exceeded, protection mechanisms are configured to allow maximum power to be drawn from the battery in order to subsequently lower the temperature level again through direct cooling. Even under heavy load, where acceleration (battery is discharged) and deceleration (battery is charged) are frequent, the AMG high- performance battery retains its high-performance capacity.

Only effective direct cooling makes it possible to use cells with a very high power density. Thanks to this individual solution, the battery system is particularly light and compact. The material-saving conductor rail concept also contributes to the low weight. The lightweight, robust crash structure of the aluminum housing ensures maximum safety.

Operating strategy: electric power always available

The basic operating strategy is derived from the hybrid powerpack of the Mercedes-AMG Petronas Formula 1 race car. As in the top class of motorsport, maximum propulsion is always available when the driver calls it up by kick-down - for example, to accelerate powerfully out of corners or when overtaking. The electric power can always be called on and frequently reproduced via high recuperation performance and needs-based recharging. The independent battery concept also enables the optimal compromise between maximum driving dynamics and modern efficiency. All components are perfectly coordinated: thE Performance gain can be experienced directly.

AMG DYNAMIC SELECT Drive Programs

The AMG DYNAMIC SELECT drive programs, "Electric," "Comfort," "Battery Hold," "Sport," "Sport+," "RACE," "Slippery" and "Individual," are precisely tailored to the new drive technology, offering a wide range of driving experiences - from efficient to dynamic. The drive programs adjust important parameters including the response of the drive and transmission, steering characteristics, chassis damping and sound. The boost power of the electric motor also depends on the respective drive program. It can be selected via the central multimedia display or the AMG steering wheel buttons. In all drive programs, the peak power of the electric motor can be easily called up via the accelerator pedal. The haptic accelerator pedal provides a tangible pressure point that the driver's foot must overcome.

As standard, thE Performance hybrid starts silently in the "Electric" drive program when the electric motor is switched on. In the instrument cluster, the "Ready" icon signals that the vehicle is ready to drive. In addition, a powerful, sonorous start-up sound, characteristic of AMG, is emitted in the interior via the vehicle's loudspeakers as acoustic feedback, showing readiness to get going. Slight pressure on the accelerator pedal is all it takes to set the AMG Performance hybrid in motion.

• "Electric": The focus is on the electric driving experience. All-electric driving is possible from a standstill up to 87 mph, while the combustion engine remains switched off. The mechanical connection to the AMG Performance 4MATIC+ components means that all-wheel drive is always available. If the rear wheels lose grip, the power of the electric motor is also transmitted to the front wheels via the driveshaft and axles. If the battery runs down or the driver requests more power, the intelligent operating control automatically switches to the "Comfort" drive program and the combustion engine starts up and almost imperceptibly takes over the drive power.
• "Comfort": Starting off takes place mostly in electric mode. The combustion engine and electric motor then run as the situation demands - with electric drive at low speeds, for example during city driving. During highway driving the vehicle operates as a hybrid. Overall, the result is a harmonious and efficiency-optimized driving experience, thanks in part to the early upshifts of the AMG SPEEDSHIFT® MCT 9G transmission. Suspension and steering are set up for an emphasis on comfort. The focus of the control system is on energy efficiency, which reduces fuel consumption and emissions. The hallmark AMG sportiness and agility are retained.
• "Battery Hold": The combustion engine and electric motor run situationally, as in the "Comfort" drive program. The biggest difference is the operating strategy keeps the battery state of charge constant. For example, if the battery is at 75 percent charge, it remains in this range in "Battery Hold." Use of the electric motor is then limited and optimized for low power consumption, which is compensated for by recuperation. Drivers can decide when to make full use of the battery charge again simply by changing the drive program.
• "Sport": Start-off with combustion engine and electric motor and permanent interaction of the two drives. More boost from the electric motor is enabled. More agile accelerator response, shorter shift times, earlier downshifts, along with a more dynamic suspension and steering setup provide a sporty driving experience.
• "Sport+": Start-off with combustion engine and electric motor and permanent interaction of the two drives. Even higher boost performance. Extremely sporty character thanks to even more agile throttle response and targeted torque intervention during upshifts, with cylinder deactivation for optimum shift times. Increased idle speed for faster starting. An even more dynamic setup for suspension, steering and powertrain.
• "RACE": For highly dynamic driving on closed courses and racetracks. All parameters are configured for maximum performance, starting with combustion engine and electric motor and situational interaction of the two drives. Full electric boost power from the electric motor to support the combustion engine during hard acceleration. Strong battery recharging at low power demand for maximum energy availability.
• "Slippery": Optimized for slippery road conditions, with reduced power and a flat torque curve. All-electric driving and recuperation adjustment are deactivated.
• "Individual": Individual customization of the drive, transmission, AMG DYNAMICS, chassis, steering and exhaust system.

The control of vehicle dynamics also benefits from the hybrid drive. Instead of braking intervention by ESP®(Electronic Stability Program), the electric motor can also control traction as soon as a wheel signals too much slip. To accomplish this, the intelligent control system reduces the drive torque of the electric motor that is transferred to the wheel via the limited-slip rear differential. As a result, ESP® does not have to throttle the combustion engine, enabling the engine to be operated at higher torque. This improves agility and the otherwise reduced power can be used to charge the battery.

Integrated AMG DYNAMICS

The integrated AMG DYNAMICS vehicle dynamics control system is also included standard. It influences the control strategies of ESP®, the all-wheel drive system and electronically controlled limited-slip rear differential. This increases agility without compromising the vehicle's stability.

AMG DYNAMICS determines how the vehicle should react. The system uses the available sensors, among other things, to ascertain the speed, lateral acceleration, steering angle and yaw rate. Thanks to an intelligent pre-control, the vehicle behavior can be predicted from the actions of the driver and data from the sensors. Regulation is tailored to the dynamic driving skill of the driver - without any noticeable or disruptive interventions by the system. The result is an authentic driving experience with high cornering dynamics and optimum traction with high stability and predictable handling.

• "Basic" is assigned to the "Comfort" and "Electric" drive programs. The design results in a very stable ride with high yaw damping.
• "Advanced" is activated in the "Sport" drive program. The vehicle remains neutrally balanced. The reduced yaw damping and increased agility support dynamic maneuvers such as cornering at speed.
• "Pro" is part of the "Sport+" drive program. In "Pro" the driver receives even more assistance for dynamic driving maneuvers while agility and feedback from the road when cornering are further enhanced.
• "Master" is coupled with the "RACE" drive program and is designed for use on closed courses and racetracks. "Master" offers a slightly oversteering vehicle balance, more direct steering and more agile turn-in. To activate "Master" mode, the driver must use the separate button in the center console to switch ESP® to ESP® SPORT handling mode or ESP® OFF.

In the "Individual" drive program, drivers can select the "Basic," "Advanced," "Pro" or "Master" AMG DYNAMICS calibration.

Recuperation selectable in four stages

Because the high-performance battery is always in the optimum temperature window of approximately 113 degrees Fahrenheit, recuperation can also be optimized. Normally, a battery heats up at high recuperation capacity, so energy recovery must be limited.

Recuperation starts when the driver takes their foot off the accelerator pedal. This charges the battery and creates braking torque. The driver can select four different levels of recuperation using the right-hand AMG DRIVE UNIT steering wheel button. With the exception of "Slippery," this applies to all drive programs and the energy recovery is then configured differently depending on the selected drive program.

• Level 0: The vehicle behaves similarly to a conventional combustion engine with a manual transmission, where the clutch is disengaged. If the driver lifts off the accelerator, the car coasts on with the least resistance. The recuperation level is very low and serves only to maintain the vehicle's power supply. With the combustion engine switched off, friction losses in the powertrain are reduced to a minimum.
• Level 1: This is the default setting, at which recuperation is noticeable for the driver. It corresponds approximately to the deceleration of a conventional combustion engine with the clutch engaged.
• Level 2: Stronger recuperation, the brake pedal hardly needs to be pushed when driving in traffic.
• Level 3: Highest energy recovery, allowing for "one-pedal" driving much like in an all-electric vehicle. Depending on the driving situation, over 100 kW of power can be fed back into the battery.
• Special feature of the RACE drive program: On the racetrack, the driver wants to squeeze the maximum time possible out of any braking action. In "RACE" drive program, recuperation is automatically set at level 1 to allow the most predictable vehicle behavior possible at the limits.

Sound experience for all-electric driving

When driving on all-electric power, the acoustic vehicle alert system informs others the AMG GT 63 S E Performance is approaching. A specially composed low-frequency, speed-dependent AMG sound is emitted to the outside via speakers at the front and rear. The sound can also be heard at a subdued level in the interior, as acoustic feedback. The system is active at speeds up to approximately 18 mph. Above this speed, the sound fades out harmoniously.

Drivers can experience the electric driving sound at higher speed ranges by selecting the sound via the corresponding AMG DRIVE UNIT button on the steering wheel (identifiable by the frequency wave symbol). When driving on all-electric power, either a discreet or a powerful sound experience is generated. When the combustion engine starts, the selected setting influences the sound of the exhaust system. In every situation, one thing remains the same: thE Performance hybrid is immediately recognizable as an AMG by its sound.

Handcrafted AMG 4.0L V8 biturbo engine with twin-scroll turbochargers

The AMG GT 63 S E Performance benefits from thE Performance of the Handcrafted AMG 4.0L V8 biturbo engine with 630 hp and 664 lb-ft of torque, which is available from 2,500 to 4,500 rpm.

Two twin-scroll turbochargers contribute to high power output, combining optimum response at lower engine speeds with an increase in power at higher engine speeds. In addition, the turbine housing is divided into two flow passages which run parallel to one another. Combined with two separate ducts in the exhaust manifold, this makes it possible to individually control the momentum of the exhaust gases acting on the turbine wheel. One duct is fed by the exhaust gases of the first and second cylinders of a cylinder bank, the other by the exhaust gases of the third and fourth cylinders. The aim is to prevent the individual cylinders from having mutually adverse effects on the gas cycle. This reduces the exhaust gas back-pressure and improves the gas exchange.

A belt-driven starter-generator (RSG) combines the alternator and starter in one unit. It is integrated into the 400-volt electrical system and has sufficient power to start the V8 engine in an instant.

Exterior design

The expressive design with a low front section, muscular body, sleek greenhouse and dynamic fastback reflects the dynamic character of the 4-door coupe. At the rear of the vehicle, the AMG GT 63 S E Performance features unique visual accents including a rear bumper with integrated charging port door, "GT 63 S" model badge highlighted in red and grooved trapezoidal twin tailpipe trims. The "E Performance" badge on each front fender also indicates thE Performance hybrid drive.

MBUX multimedia system with hybrid-specific displays

The MBUX infotainment system (Mercedes-Benz User Experience) includes many AMG hybrid-specific displays and functions. High-quality graphics visualize the power flow of the drive system. Speed, power, torque and temperature of the electric drive unit can also be displayed.

AMG Performance steering wheel

The standard AMG Performance steering wheel with its distinctive twin-spoke design and seamlessly integrated control buttons also contributes to the hallmark AMG look. The three rounded twin spokes combine strength with lightness. The round AMG steering wheel buttons impress with brilliant displays and intuitive operating logic. This allows important driving functions and all drive programs to be controlled without the driver's hands leaving the steering wheel. The recuperation levels of the hybrid drive can also be selected via the steering wheel buttons.

Standard AMG RIDE CONTROL+ suspension

The AMG RIDE CONTROL+ suspension is based on multi-chamber air suspension with automatic level control, combined with adaptive, electronically controlled adjustable damping. This damping system utilizes two pressure relief valves. These continuously variable control valves, located outside the damper, allow the damping force to be adjusted even more precisely to different driving conditions and drive programs. One valve controls the rebound damping, i.e. the force that occurs when the wheel rebounds, and the other controls the compression damping when the wheel compresses. The rebound and compression stages are controlled independently of each other.

The AMG development engineers were able to significantly increase the differentiation between sportiness and comfort, among other things by widening the gap between the minimum and maximum damping force characteristics and by providing even greater flexibility in map design. Due to the special design of the valves, the damper reacts quickly and sensitively to changing road surfaces and driving conditions.

The driver can preselect the basic setup via the AMG DYNAMIC SELECT drive programs. At the touch of a button, the handling characteristics change, for example, from full dynamics in "Sport+" to smooth cruising in the "Comfort" setting. In addition, the tuning can be adjusted in three stages independently of the drive programs.

AMG high performance carbon ceramic composite brake system

An AMG high performance carbon ceramic composite brake system with bronze-colored six-piston fixed calipers at the front and single-piston floating calipers at the rear is fitted as standard. The carbon ceramic brake discs measure 16.5 x 1.6 inches at the front axle and 15 x 1.3 inches at the rear axle. The brake system impresses with short braking distances, high stability and fade-resistance.