Mercedes-AMG is preparing to exclude the high-performance hybrid drive train with four-cylinder plug-in-hybrid drive train, which is used in the C63 SE output and GLC 63, which is a significant reversal of the brand’s electrification strategy. In conversation with AutoCar in the unveiling of the All-Electric Concept AMG GT XX in Germany, a high-ranking AMG insider allegedly confirmed that the M139-based hybrid is either replaced by an updated inline-six or a brand new V8.
Downsizing did not deliver
The 2.0-liter engine M139, which debuted in 2022 with a combined system edition of over 670 hp, was developed to help AMG to meet the emission regulations and at the same time maintain performance registration information. But the reduced, electrified setup has never resumed the core audience of the brand. Critics pointed out his muffled sound, the high curb weight and the lack of emotional character compared to the previous 4.0-liter V8. Despite strong performance and advanced technology, the system added complexity without delivering the type of visceral experience that buyers expect from AMG models. The M139 drive train makes things more difficult and requires expensive neo -ginering to meet the upcoming Euro 7 emission regulations. According to reports, these impending costs have reported his fate.
Return to larger engines
Instead, Mercedes-AMG is preparing to reintroduce traditional performance engines. A revised 3.0-liter inline-six-in models such as GLE 53 and CLE 53-a candidate for future C-Class and SL models. A new V8 with a flat-plane crankshaft, inspired by the AMG GT Black series, is also said to be under development. Both options offer hybrid support in any form, either via 48-volt mild hybrid systems or complete plug-in setups.
BMW M’s strategy pays off
The move is in a strong contrast to the motor philosophy of BMW M. While AMG pursued a radical shift to hybrid engines with a smaller insurance, BMW M chose the development of its proven 4.4-liter twin-turbo V8-NUN, which in the new 2025 BMW M5, the XM and high-performance SUVs such as the X5 m and X6 m. M. was used as the X5 m and X6 M. M.
Instead of the reduction, BMW decided to combine its V8 with electrification. For example, the new M5 delivers 717 hp and 738 LB-FT torque from a plug-in hybrid setup that was built around the V8. The result: regulations for the regulations, bladder performance and the type of motor and gas representation that buyers expect. This consistency seems to pay off. While AMG customers frustrated about the lack of character of the hybrid four-cylinder, BMW M kept the trust of customers by sticking to what works. [Source: Autocar]
