Mercedes-Benz Rebuts Its Electric-Only Future: Are V-8 Engines Making a Comeback?

Mercedes-Benz is in the throes of a powertrain revolution. Despite their previous commitment to a zero-emissions future, recent moves indicate that the venerable V-8 engine may not be headed to the guillotine just yet. Yes, the luxury automaker has integrated high-performance four-cylinder engines into flagship models like the C-Class, but there are compelling signs that the V-8 could soon be resurrected.

The Initial Transition: Embracing Electric

At the onset of Mercedes-Benz’s shift towards electrification, AMG embarked on a journey that culminated in the C63 S E Performance. Launched with great fanfare, this revolutionary vehicle represented the apex of hybrid technology. Drawing inspiration from Formula 1, it utilized a complex four-cylinder turbocharged engine. However, the flashy tech overshadowed some fundamental issues, such as wobbly production timelines and tepid market reception.

The AMG One, powered by a 1049-hp engine also derived from F1 technology, was a testament to Mercedes’ ambitious vision. Despite its potential, the hybrid supercar struggled under the weight of high expectations, and its less-than-stellar market performance exemplified the pitfalls of such a drastic transition. The initial intention was to transfer this high-tech prowess to the mainstream road cars like the C-Class, albeit with some notable compromises.

Upon its release in Spain, the AMG C63 S E Performance's stats were impressive on paper. Yet, the on-road experience left much to be desired. Critics pointed out the lack of emotional engagement and underwhelming real-life efficiency. Understandably, these factors hindered consumer enthusiasm, making it difficult to justify its premium pricing against more engaging six- and eight-cylinder alternatives.

A V-8 Powered CLE by 2027?

Fast forward to recent events: Mercedes-Benz’s early 2023 introduction of an online discount was a clear signal of its underwhelming sales performance. Consequently, AMG decided to cancel the nearly finalized CLE63 S E Performance. However, this setback has spurred excitement about a more traditional powerhouse potentially in the works—a V-8 powered flagship version of the CLE.

Rumored to arrive by the 2027 model year, this new iteration would employ an evolved version of the mighty twin-turbo 4.0-liter V-8 (referred to as the M177). This potent machine currently enlivens models like the GLE63 and G63 SUVs. Though Mercedes has been tight-lipped about future engine variations, there is optimism surrounding a power unit boasting at least 600 horsepower and 774 pound-feet of torque. All these numbers could be amplified by technology such as an integrated starter-generator (ISG) and possibly extending towards the C63’s combined output of 671 hp.

Take the hybridized setup on AMG’s GT four-door, for instance, which offers up to 831 hp in plug-in hybrid guise. This robust platform exemplifies the kind of versatility and power that would render a V-8-engined CLE a formidable contender in a segment packed with rivals like the forthcoming Audi RS6 and the 718-hp BMW M5 PHEV.

Implications for the Future

The focus now shifts to what this potential about-turn means for models like the C63 and GLC63. With environmental constraints easing somewhat and advancements in ICE technology, extending their lifecycle until 2032 becomes increasingly feasible. Speculation is rife that these models may undergo a second facelift, potentially welcoming back the V-8.

Sources from Affalterbach suggest maintaining the current engine block while updating cylinder heads and incorporating electric turbos as a cost-effective and regulatory-compliant approach. Even though emission standards like the EU7 are now less stringent, boosting engine displacement to 4.4 liters could be an optimal alternative. This strategy ensures the enduring appeal of internal combustion engines alongside emerging technologies, thereby protecting the legacy of Mercedes’ V-8.

With gasoline engines safeguarded until at least 2035—even in the most restrictive markets—Mercedes-Benz’s pivot back to the V-8 is not just a fleeting dream. It’s a calculated strategy to harmonize innovation with heritage. Eleven of the seventeen models under the Mercedes, AMG, and Maybach brands can currently house a V-8 engine, and this versatility is crucial.[/p]