Mercedes-AMG has announced that the current C 63 will be replaced by a new C 53 model, as stated by Michael Schiebe, the president of Mercedes-AMG. This new version will feature a six-cylinder gasoline engine rather than the existing four-cylinder plug-in hybrid engine. The C 53 will be equipped with a 3.0 M256M inline turbocharged engine, which is already in use in the CLE 53 model, marking a significant shift in the company’s performance lineup.

The new engine configuration will reportedly produce 443 horsepower and 560 Nm of torque in the coupé variant, although there is no confirmation yet on whether these specifications will change in the C 53. It is certain, however, that the new powertrain will not match the previous C 63's performance figures, which boasted a combined output of 671 HP and 1020 Nm of torque. Despite the reduction in power, AMG suggests that customers seek excitement not only from horsepower but also from the overall character of the car, hinting at a more engaging driving experience in the C 53.

In addition to the performance updates, Mercedes-AMG suggests that moving away from the plug-in hybrid powertrain will lead to significant benefits, although specifics have not been disclosed. This change comes at a time when Mercedes already noted a downturn in sales, with 1.8 million passenger cars sold in 2025, representing a 9% year-on-year decline. The shift to the C 53 may signal a new direction for the brand as they look to balance performance, tradition, and market demands in a rapidly evolving automotive landscape.