Mercedes-AMG GT 63 SE Performance packs power into plug-in hybrid
The Mercedes-AMG GT 63 SE Performance is capable of covering 7 miles of emission-free driving on a full charge. The four-door coupe can go up to 80 mph with the engine off.
The model’s hybrid powertrain is derived from the powertrain of the Mercedes-AMG Petronas Formula 1 race car.
A 204 hp electric motor, fitted with a 6.1 kilowatt-hour battery, is located above the rear axle to improve the vehicle’s weight distribution and handling, Mercedes said. The motor acts directly on the rear axle, providing extra punch when starting from a standstill, accelerating or overtaking.
The electric motor is integrated with an electrically controlled two-speed gearbox and electronically controlled rear limited-slip differential.
The battery has a new thermal management system designed to ensure even heat distribution throughout the battery, which is critical to the performance and longevity of the power supply.
AMG engineers have developed new modules that are just a few millimeters thick to individually cool the 560 lithium-ion cells in the battery. About 15 liters of coolant flow from top to bottom through the battery past each cell using a specially developed electric pump.
The thermal management system ensures that the battery operates at a constant temperature of 113 degrees Fahrenheit on average, regardless of how often it is charged or discharged. This allows the sports car to perform successive quick laps in hybrid mode on the circuit.
Direct cooling also allows the use of high power density cells, reducing the weight and size of the battery.