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With the premiere of the new Mercedes-AMG E 63 and E 63 S — the most powerful E-Class of all time — a new all-wheel drive is celebrating its debut: AMG Performance 4MATIC+. Dr. Thomas Kernstock, Head of Drivetrain Design/Testing, explains the details. To every Mercedes-AMG driver, 4MATIC is a term that signifies a vehicle has allwheel drive. But what does the new “+” that follows it indicate? AMG Performance 4MATIC+ denotes a new all-wheel drive in which the torque is shifted between the front and rear axle in a fully variable manner. On the previous 4MATIC all-wheel drive, the torque distribution between the front and rear axle was fixed. Owing to its full variability, it’s possible for the AMG Performance 4MATIC+ to respond adaptively to the current driving situation and to distribute the drive torque discretely and optimally to both of the vehicle’s axles. That immediately ensures both the maximum traction and the highest level of driving safety. In addition, the AMG Performance 4MATIC+ provides for a reduction in torque on the front axle at high speeds so that the vehicle runs extremely efficiently — while being stable at the same time. Is this all-wheel drive the right response to the “most powerful E-class of all time”, as the trade media have dubbed the Mercedes-AMG E 63 S, in which the AMG Performance 4MATIC+ is celebrating its debut? Definitely. The 4.0-liter V8 biturbo engine in the new Mercedes-AMG E 63 S provides up to 612 hp and 850 Nm. To put this massive performance capability on the road with all due superiority, a fundamental revision of the all-wheel drive concept was inevitable. The result is AMG Performance 4MATIC+. The AMG Performance 4MATIC+ is also supposed to significantly improve the startup performance of the vehicle. In what way? During a longitudinal dynamic start in a Mercedes-AMG, this technology results in a dynamic axle load distribution of the vehicle, whereby the front axle of the vehicle is partially relieved. The Mercedes-AMG E 63 S 4MATIC+ can distribute its torque quickly and perfectly between the front and rear axles. This gives you maximum traction while also producing as little slip as 142


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