Mercedes-AMG Prepares Ultra-Exclusive V8-Powered CLE Mythos Masterpiece Following Private Nürburgring Testing Session

The automotive landscape is witnessing a significant pivot as Mercedes-AMG returns to its high-displacement roots for its most prestigious offerings, evidenced by the recent appearance of a V8-powered CLE-based prototype at the Nürburgring Nordschleife. This vehicle, a cornerstone of the newly established "Mythos" series, represents a strategic departure from the brand’s recent emphasis on downsizing and electrification for its core performance models. While the current Mercedes-AMG C63 has transitioned to a four-cylinder hybrid powertrain, the forthcoming Mythos CLE confirms that the eight-cylinder engine remains the preferred choice for the manufacturer’s most exclusive, low-volume halo cars.
The Mythos Strategy: Elevating Mercedes-AMG Beyond Traditional Luxury
The Mythos series was first announced by Mercedes-Benz Group CEO Ola Källenius in 2022 as part of a broader corporate strategy to prioritize "Top-End Luxury." Positioned above even the Mercedes-Maybach sub-brand in terms of exclusivity and price, Mythos is designed to cater to the world’s most dedicated automotive collectors. The first entry in this series, the SL-based PureSpeed—a roofless, speedster-style homage to legendary Mercedes racing cars—set the tone for the division.
This new CLE-based model is the second confirmed member of the Mythos family. Unlike the standard Mercedes-Benz CLE, which was developed to replace both the C-Class and E-Class coupes, the Mythos variant is a ground-up performance reimagining. It targets a demographic that demands mechanical purity, specifically the visceral experience provided by a large-displacement internal combustion engine. By utilizing the CLE’s MRA2 platform, Mercedes-AMG engineers have demonstrated that the chassis can indeed accommodate the 4.0-liter V8, a configuration that many enthusiasts lamented was missing from the standard AMG C63 sedan.
Observations from the Nordschleife: A Private Development Session
The prototype was recently captured during a private testing session at the Nürburgring, a move that signals the vehicle is entering its final stages of dynamic calibration. Booking the entire 12.9-mile Nordschleife for solo testing is an expensive and logistically complex undertaking, typically reserved for high-stakes development or official lap record attempts. For Mercedes-AMG, this "clear track" environment allowed engineers to push the Mythos CLE to its absolute limits without the traffic common during "Industry Pool" sessions, where multiple manufacturers share the circuit.
Visual evidence from the session highlights a vehicle that has undergone extensive aerodynamic and cooling modifications. The prototype features a significantly wider track than the standard CLE 53, necessitating flared wheel arches that give the car a "Black Series" aesthetic. A prominent, functional hood scoop is visible, designed to feed air into the engine bay and manage the heat soak associated with a high-output twin-turbocharged V8. At the rear, the vehicle sports a massive, fixed racing wing and a unique stacked quad-exhaust arrangement, a design cue often reserved for the most extreme AMG iterations.
Technical Specifications and the Flat-Plane Crank Rumors
While official specifications remain under seal, industry insiders and reports from private dealer previews in Sindelfingen suggest the Mythos CLE will utilize a highly tuned version of the M177/M178 4.0-liter Biturbo V8. There is persistent speculation that this engine may feature a flat-plane crankshaft, similar to the unit found in the Mercedes-AMG GT Black Series. This configuration allows for higher revving and a more aggressive exhaust note, distinguishing it from the cross-plane V8s found in the G63 or S63.
Current estimates place the power output at approximately 646 horsepower. This would position the Mythos CLE comfortably above the 443-hp CLE 53 and within striking distance of the GT Black Series. However, unlike the four-cylinder C63 S E Performance, which relies on a heavy battery and electric motor to reach its 671-hp peak, the Mythos CLE is expected to prioritize weight reduction. By eschewing a complex hybrid system, AMG aims to deliver a more agile, driver-centric experience that mirrors the characteristics of GT3 racing machinery.
Chronology of the CLE and the Path to Mythos
The development of the CLE-based Mythos model follows a specific timeline of Mercedes-AMG’s recent product evolution:
- May 2022: Mercedes-Benz announces the "Mythos" sub-brand during an investor presentation in Nice, France.
- July 2023: The standard Mercedes-Benz CLE Coupe (C236) debuts, merging the C-Class and E-Class coupe lines into a single model.
- December 2023: The AMG CLE 53 is revealed, featuring a 3.0-liter turbocharged inline-six with 443 hp.
- May 2024: The Concept Mercedes-AMG PureSpeed debuts at the Monaco Grand Prix, marking the first Mythos model.
- Late 2024: Reports emerge from private dealer meetings regarding a V8-powered, ultra-limited CLE "Mythos" or "Black Series."
- Late 2024: High-speed testing of the V8 prototype begins at the Nürburgring, confirming the hardware.
This timeline suggests a rapid transition from the "concept" phase of the Mythos brand to the delivery of actual production-ready hardware. The move to test at the Nürburgring in late 2024 points toward a formal global premiere in early to mid-2025, with a scheduled delivery window for customers starting in 2027.

Market Positioning and Exclusivity
One of the most striking details regarding the Mythos CLE is its rumored production volume. Sources close to the brand indicate that Mercedes-AMG may limit the Mythos-spec model to just 30 units worldwide. This level of scarcity places it in the same realm as boutique hypercars and ensures that it will be a highly sought-after asset for collectors.
However, there is ongoing discussion regarding a potential "Black Series" variant of the CLE. This would likely be a slightly less exclusive, higher-volume version of the V8 coupe. While the Mythos version would feature bespoke materials, unique bodywork (perhaps even speedster or targa elements), and a price tag likely exceeding $300,000, a CLE 63 Black Series could serve as the "standard" high-performance V8 flagship for the model line, produced in the hundreds rather than dozens.
Analysis of Implications: The Future of the V8 at AMG
The existence of the V8 CLE is a significant admission by Mercedes-AMG that the high-end market remains resistant to the total electrification of performance cars. When the C63 S E Performance was released with a four-cylinder engine, it was met with mixed reviews from traditionalists who associated the AMG brand with the "Hammer" V8 legacy. By introducing a V8 into the CLE—which is effectively the coupe counterpart to the C-Class—AMG is correcting its course for its most vocal and affluent critics.
This development also has implications for the future of the E-Class. If the MRA2 platform used by the CLE can accommodate the V8 and its cooling requirements for the Mythos series, it technically paves the way for the return of an E63 V8. While emissions regulations in Europe and China remain a hurdle, the high margins on Mythos and Black Series models allow Mercedes to absorb the necessary regulatory penalties or offset them through their broader EV portfolio.
Comparative Performance and Engineering Challenges
The engineering team at Affalterbach has reportedly focused heavily on the "track-to-street" transfer of technology for this model. The aerodynamic package seen at the Nürburgring—including the rear diffuser and front splitter—suggests a level of downforce comparable to the BMW M4 CSL or the Porsche 911 GT3 RS.
Comparing the potential performance:
- Mercedes-AMG CLE Mythos: ~646 hp, V8 Biturbo, Rear-Wheel or All-Wheel Drive (estimated).
- BMW M4 CSL: 543 hp, Inline-Six Twin-Turbo, Rear-Wheel Drive.
- Mercedes-AMG GT Black Series: 720 hp, V8 Biturbo (Flat-Plane), Rear-Wheel Drive.
The Mythos CLE is expected to bridge the gap between a traditional luxury grand tourer and a dedicated track weapon. By utilizing the longer wheelbase of the CLE compared to the AMG GT Coupe, the Mythos model may offer greater high-speed stability on tracks like the Nürburgring, though it will face a significant challenge in matching the 6:35.18 lap time set by the AMG GT Black Series in 2020.
Conclusion: A Final Celebration of Internal Combustion
As global emissions standards like Euro 7 approach, the Mercedes-AMG CLE Mythos represents a "final hurrah" for the unadulterated V8 engine in a mid-sized coupe body. For Mercedes-AMG, this vehicle is more than just a performance car; it is a branding tool designed to maintain the prestige of the three-pointed star in an era of rapid industry transition.
While the 30 lucky owners who secure a Mythos CLE will likely see their vehicles as appreciating assets, the broader automotive world views the car as a testament to AMG’s engineering prowess. By returning to the V8 for its most exclusive projects, Mercedes-AMG is ensuring that the "Mythos" of the brand—one built on power, sound, and presence—remains intact for at least one more generation. The coming months will reveal the final design and official performance figures, but the sights and sounds from the Nürburgring have already confirmed that the V8’s heart still beats at the center of Affalterbach’s most ambitious projects.







