Mercedes-Benz has officially confirmed a major shift for its performance-focused C-Class. After facing criticism for downsizing from a thunderous V8 to a complex 4-cylinder hybrid, the next-generation AMG C63 will return to a larger, more traditional six-cylinder engine. The move signals a recalibration of Mercedes-AMG’s strategy in balancing electrification with customer expectations.
From V8 Thunder to Four-Cylinder Controversy
When Mercedes launched the current AMG C63 S E Performance, enthusiasts were taken aback. The legendary V8, long considered the heart of AMG’s character, was swapped for a highly engineered 2.0-litre four-cylinder hybrid powertrain. On paper, it delivered remarkable performance and efficiency. In reality, purists lamented the loss of drama, sound, and simplicity.
Feedback from markets showed that while AMG’s hybrid was technically impressive, the emotional appeal lagged behind rivals Audi RS5 and BMW M3, which continued offering six-cylinder engines with more traditional performance character.
Straight-Six Confirmed for Next Chapter
Speaking at a recent event, Mattias Geisen, board member for sales & marketing at Mercedes, confirmed the strategic reversal:
“We will have some options where we had a four-cylinder, which will also be available as a six-cylinder going forward. There may or may not be a hybrid, it might be pure-ICE, maybe. We’ll let you know when we’re there.”
This statement makes it clear that the upcoming AMG C63 will feature a 3.0-litre straight-six engine, which is already familiar to the larger AMG E53. That unit, paired with a plug-in hybrid system, produces 603 BHP, plenty of firepower to rival competitors. Whether the C63 sticks to pure combustion or blends hybrid tech will be revealed later.
Aligning With Rivals
By moving back to a six-cylinder layout, AMG places the C63 directly in line with its segment competitors. BMW’s M3 relies on a straight-six, while Audi’s RS5 continues with a V6. Performance car buyers often weigh sound, emotion, and heritage as heavily as horsepower figures. Mercedes seems to have recognized that alignment with the market’s emotional expectations is as important as leading in technology.
The decision also hints at Mercedes-AMG’s larger strategy: to maintain hybridization and electrification where it enhances the product, but not at the cost of driver appeal.
EV C-Class Teased
While Mercedes is adjusting its ICE performance portfolio, the company hasn’t slowed its EV push. At the recently concluded IAA Mobility Show 2025, the brand teased the all-electric C-Class sedan. Positioned as the electric twin to the combustion-powered C-Class, the model will eventually broaden Mercedes’ footprint in the premium mid-size EV market.
The teaser suggests a sleek, aerodynamically optimized design, carrying the EQ family’s cues but with a sportier profile to retain the C-Class identity. Full technical details remain under wraps, but expectations are high for strong range figures and fast-charging capabilities.
No Timeline Yet
Geisen stopped short of announcing when the new AMG C63 will hit showrooms. The development is clearly underway, but Mercedes-Benz is pacing the rollout carefully as it manages both combustion and electric strategies in parallel.
For now, the confirmation of a six-cylinder return alone is enough to spark excitement among enthusiasts. The next-generation AMG C63 looks set to balance performance innovation with the soul that fans felt was missing from the four-cylinder experiment.
