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Mercedes-AMG CLE 646 Spezialanfertigung: Purist High-Performance Coupé for Maximum Driving Dynamics

• High-performance coupé delivering an uncompromisingly direct driving experience 

• 646 hp (475 kW) AMG 4.0‑litre V8 biturbo engine and rear-wheel drive 

• Unique wide-body, newly developed coil over suspension and extensively engineered aerodynamics 

• Around 170 kilograms of weight reduction through a rigorous lightweight construction approach 

• Highly limited Mythos Series model handcrafted in Affalterbach 

The Mercedes‑AMG CLE 646 Spezialanfertigung was developed with one clear focus: driving dynamics. This road-legal high-performance coupé delivers an uncompromising driving experience on winding country roads and closed race circuits. To achieve this, the vehicle combines a 646 hp (475 kW) V8 biturbo engine with pure rear-wheel drive, significantly reduced weight and a chassis setup consistently engineered for precision. A unique wide-body concept with wider tracks, numerous carbon-fiber components and purpose-developed aerodynamics further enhances the vehicle’s dynamic potential. To enable this, each CLE 646 Spezialanfertigung is comprehensively rebuilt at AMG’s headquarters in Affalterbach to the highest manufactory standards. 

“For me, the Mercedes‑AMG CLE 646 Spezialanfertigung represents the very essence of AMG. This vehicle came to life because highly rational engineers dreamed of a highly irrational car. We turned that dream into reality in the form of maximum driving dynamics and an unparalleled driving experience.” 
Dr. Stefan Weckbach Chairman of the Management Board of Mercedes‑AMG GmbH and Head of the 
 Mercedes‑Benz G‑Class & Mercedes‑Maybach Business Units

“The Mercedes‑AMG CLE 646 Spezialanfertigung sets new benchmarks with its uncompromising presence and driving dynamics. Through the extensive use of carbon fiber, we were able to create a particularly distinctive appearance. Its bold proportions and the sheer size of the grille underscore the ambition to present a vehicle of extremes. The result is a masterpiece, full of performance and character.”
Bastian Baudy, Chief Design Officer Mercedes‑Benz Group AG 

Mercedes‑AMG CLE 646 Spezialanfertigung | energy consumption combined: 15.8 l/100 km | CO₂ emissions combined: 359 g/km | CO₂ class: G1  Mercedes‑AMG PureSpeed | energy consumption combined: 13.7 l/100 km | CO₂ emissions combined: 312 g/km | CO₂ class: G2

Driving Dynamics as the Development Mission

The Mercedes‑AMG CLE 646 Spezialanfertigung began with a simple question: How can a CLE be developed even further towards maximum driving dynamics? Yet this was not driven by a traditional product development brief, but by an idea born within the AMG engineering team. A small group initially began by building a prototype. The goal was not a collection of individual performance upgrades or a conventional special edition. Instead, the vehicle was reimagined as a complete performance system. 

The current Mercedes‑AMG CLE Coupé serves as the technical foundation. Building upon it, AMG engineers in Affalterbach created a unique special development featuring increased power output, a purpose-tuned chassis, rigorous lightweight construction and numerous body modifications. Compared with the donor vehicle, weight was reduced by around 170 kilograms, while the bodyshell itself underwent extensive modifications. The result is a comprehensive rebuild crafted to Affalterbach manufactory standards, forming the basis for the model designation “Spezialanfertigung”. 

AMG 4.0‑Litre V8 Biturbo Engine with 646 hp

At the heart of the CLE 646 Spezialanfertigung is the extensively enhanced AMG M177 EVO 4.0‑litre V8biturbo engine. Its output of 646 hp (475 kW) is reflected in the model designation itself. Maximum torque stands at 850 Nm and is available across a broad engine speed range from 2,500 to 4,500 rpm. The engine’s flat-plane crankshaft reduces rotating masses, improves revving characteristics and promotes exceptionally responsive throttle response, further supported by dedicated engine mapping. 

To ensure thermal stability even under extreme loads, the V8 engine features three separate cooling circuits: a high-temperature circuit for the engine itself, and two low-temperature circuits for charge-air and transmission-oil cooling as well as the 48‑volt components. In the Mercedes‑AMG CLE 646 Spezialanfertigung, these systems have been specifically enhanced to meet the demands of an exceptionally challenging operating profile, ranging from intensive racetrack use to very high ambient temperatures. 

The characteristic V8 soundtrack is further amplified by a bespoke high-performance exhaust system featuring increased flow capacity and a sound signature engineered with a strong emotional focus. The cold-end design was developed in cooperation with Akrapovič, while the extensive use of titanium also contributes to weight reduction. 

From All-Wheel Drive to Rear-Wheel Drive: Power Delivered Exclusively to the Rear Wheels

One of the most fundamental changes concerns the drivetrain. The AMG Performance 4MATIC+ system of the donor vehicle has been removed entirely, with the CLE 646 Spezialanfertigung transmitting its power exclusively to the rear axle. The switch to rear-wheel drive reduces weight while fundamentally altering the car’s dynamic character. An electronically controlled limited-slip rear differential optimizes torque distribution between the rear wheels through variable locking action as required. This enhances traction, driving stability and overall vehicle dynamics. Under suitable driving conditions, it can also support controlled drifting. 

Short Shift Times: AMG SPEEDSHIFT TCT 9G Transmission

The standard AMG SPEEDSHIFT TCT 9G transmission delights performance-oriented drivers with its dynamic shift characteristics and emotional double-declutch function. Depending on the selected drive program, it delivers either sporty, rapid gear changes or exceptionally smooth and almost imperceptible shifts. Thanks to its nine forward gears, the engine operates within its optimum rev range particularly frequently. The AMG SPEEDSHIFT TCT 9G transmission also combines efficiency with dynamic performance. When required, the torque-converter transmission can execute multiple downshifts in rapid succession to access the engine’s full performance almost instantaneously. The transmission’s overall character can be tailored via AMG DYNAMIC SELECT, which offers a range of drive programs with specific drivetrain settings. 

The Mercedes‑AMG CLE 646 Spezialanfertigung’s Launch Control system has also been specifically adapted to the rear-wheel-drive layout. The new Mythos model accelerates from a standstill to 200 km/h in 11.4 seconds. Top speed is 310 km/h. 

Purpose-Developed Steel Coil over Suspension for Precise Handling

The suspension has likewise been specifically optimized for the Mercedes‑AMG CLE 646 Spezialanfertigung. It features a steel coil over suspension system jointly developed by Mercedes‑AMG and KW automotive. The setup enables exceptionally precise tuning to suit driving style, circuit characteristics, individual preferences and intended use. 

At the heart of the suspension is four-way adjustable damper technology with independently configurable low-speed and high-speed rebound and compression settings. This allows the chassis to be tailored precisely to a wide range of driving requirements. 

The low-speed settings specifically influence body movements during braking, acceleration and turn-in. The performance-focused calibration delivers razor-sharp handling, enhanced driver feedback and outstanding vehicle stability. The high-speed settings influence damper response during rapid wheel movements caused by bumps, kerbs or road surface irregularities. The result is an exceptional balance of direct vehicle feedback, outstanding body control, maximum traction and confident stability, even under the most demanding dynamic conditions. The dampers react to every surface input without perceptible delay, providing the driver with an extraordinary level of precision and confidence. 

AMG Ceramic High-Performance Composite Braking System

The AMG Ceramic High-Performance Composite Braking System is engineered for extreme loads and delivers consistently high braking performance, even during intensive racetrack use. An integral part of the system is a specially developed brake-cooling concept tailored to the Mercedes‑AMG CLE 646 Spezialanfertigung. Large air intakes in the front bumper and dedicated airflow-guiding elements significantly improve heat dissipation. 

At the front axle, internally ventilated and perforated ceramic brake discs measuring 420 x 40 millimeters are paired with six-piston fixed calipers and long-fiber technology. Heat generated within the friction surface during braking is transferred more rapidly into the cooling channels of the disc, resulting in lower brake pad temperatures. At the rear axle, internally ventilated and perforated ceramic brake discs measuring 360 x 32 millimeters are combined with single-piston floating calipers. 

Compared with a conventional braking system, the setup reduces weight and unsprung masses. Both driving dynamics and turn-in response benefit directly. The gold-painted brake calipers further underline the system’s high-performance character. 

Distinctive Appearance: Wide-Body Design with Extensive Carbon-Fiber Components

The body of the Mercedes‑AMG CLE 646 Spezialanfertigung has been engineered entirely with maximum driving dynamics and performance in mind. The extensively modified bodyshell increases structural rigidity and forms the basis for the vehicle’s exceptional performance potential. Numerous series-production components have been replaced by solutions specifically developed for demanding road and track use.  

A key element of the concept is its significantly wider stance. To achieve this, the bodyshell has been reinforced and widened. The result is an additional 60 millimeters of vehicle width at both the front and rear. The wider track enhances stability, increases cornering potential and allows the use of exceptionally wide wheels and tyres. 

Carbon fiber is used for the widened front fenders with integrated air outlets, the redesigned front apron with large cooling air intakes, the side sill panels, the bonnet with central cold-air intake, the roof and the newly developed rear apron with diffuser. The reinforced boot lid and manually adjustable rear wing mounted on two trapezoidal supports are also made from carbon fiber. The rear side windows and rear window are manufactured from polycarbonate, while a lighter 12‑volt starter battery contributes further to overall weight reduction. 

These technical requirements define the vehicle’s unmistakable design language. The striking carbon-fiber fender extensions provide space for exclusive AMG Performance forged wheels measuring 11.0 J x 20 at the front and 12.0 J x 20 at the rear. The tyres measure 305/30 ZR20 at the front and 335/30 ZR20 at the rear and are based on a further development of technology originally created for the Mercedes‑AMG ONE. Their unique design remains exclusive to the Mercedes‑AMG CL 646 Spezialanfertigung. 

The vehicle’s powerful presence is further emphasized by its exclusive paint finish. The front section is finished in Mojave Silver Magno, while the bodywork from the B‑pillar rearwards is painted in Obsidian Black Magno. AMG crests on the driver’s and passenger’s doors underline the bespoke character of the Spezialanfertigung. Ride height has likewise been optimized for performance, with the vehicle lowered by 22 millimeters at the front axle and 16 millimeters at the rear. 

Greater Torsional Rigidity, Greater Precision

To achieve the exceptional driving dynamics of the Mercedes‑AMG CLE 646 Spezialanfertigung, the body structure has been engineered to withstand the highest loads. Additional reinforcements and an integrated roll-over bar significantly increase bodyshell rigidity. Precision, stability and driver feedback benefit directly, particularly during spirited driving. These measures provide the foundation required to fully exploit the vehicle’s immense performance potential on both road and racetrack. 

Aerodynamics Developed Specifically for Track Use

The aerodynamics of the Mercedes‑AMG CLE 646 Spezialanfertigung have likewise been developed with driving dynamics as the primary objective. The front diffuser, fender louvers, underbody measures and rear wing form a fully integrated aerodynamic package. 

For maximum differentiation between everyday usability and track performance, the front diffuser can be manually adjusted via three fasteners between two positions: “Street” and “Race”, with the latter intended exclusively for racetrack operation. 

When extended into the Race position, the front diffuser forms a distinct aerodynamic profile beneath the front end of the vehicle. Its inverted wing shape accelerates airflow underneath the car and generates the Venturi effect, thereby increasing front-axle downforce. The benefits are immediately noticeable in the steering response. The Mercedes‑AMG CLE 646 Spezialanfertigung remains exceptionally precise and stable at high speeds, while delivering agile turn-in and clear steering feedback under high lateral loads. 

In combination with the extended front diffuser, the center section of the carbon-fiber rear wing can be manually adjusted to further increase rear-axle downforce on the racetrack and achieve the desired aerodynamic balance. 

Open louvers integrated into the widened fenders improve wheelhouse ventilation and contribute to additional downforce. A particular innovation is the channel system positioned next to the headlights, directing airflow through the wheel arches and out through the louvers. Additional flics mounted on the sides of the front apron optimize airflow, increasing front-axle downforce while simultaneously improving brake cooling. 

The aerodynamic development extends far beyond the visible exterior elements to include numerous details within the underbody paneling, which fulfils both aerodynamic and thermal requirements. Optimizations to the cooling concept allow the front underbody to remain almost fully enclosed. The flat floor incorporates specially designed longitudinal fins that locally accelerate airflow and contribute further to increased downforce. In total, the system generates well over 250 kilograms of downforce at top speed. 

Precisely Adjustable AMG TRACTION CONTROL

For use on closed circuits with ESP switched off, AMG TRACTION CONTROL allows drivers to individually tailor the level of support provided when managing the engine’s considerable output, without ESP stability interventions. 

The system can be adjusted with great precision, providing the appropriate setting depending on tyre temperature and the driver’s desired proximity to the handling limit. Specifically calibrated for the Mercedes‑AMG CLE 646 Spezialanfertigung, AMG TRACTION CONTROL allows wheel slip at the driven rear axle to be preselected across nine stages. 

In pursuit of the most direct driving experience possible, infotainment and other features have also been reduced. As a result, the CLE 646 Spezialanfertigung dispenses with numerous comfort and assistance systems, including the PARKTRONIC parking assistant. 

Consistent Lightweight Construction in the Interior

The interior of the Mercedes-AMG CLE 646 Spezialanfertigung follows the same unwavering focus on lightweight construction and driving dynamics. The rear seats and acoustic insulation materials have been removed. Comfort features have been reduced, and the sound system has been simplified to save weight.

The deletion of various drive modes and assistance systems also allowed the number of controls on the AMG Performance steering wheel to be reduced. Thanks to its DINAMICA microfiber covering and motorsport-inspired flattened shape, the steering wheel provides exceptional grip and control.

Ultra-lightweight high-end racing bucket seats with pronounced lateral support are fitted as standard, along with a roll-over bar that increases torsional rigidity and further enhances driving dynamics. Lightweight carbon-fiber door panels complete the interior package. As part of the optional Performance Package, six‑point harnesses securely hold driver and passenger in place.

 Each vehicle is hand-built in Affalterbach based on a CLE 53 platform. In doing so, it continues AMG’s long tradition of exclusive manufactory craftsmanship that has produced icons such as the AMG 300 CE 6.0 “The Hammer”.

Limited Collector’s Car with a Clear Track Focus

The Mercedes‑AMG CLE 646 Spezialanfertigung is the second model in the highly exclusive Mercedes‑Benz Mythos Series, dedicated to exceptionally rare collector vehicles produced in strictly limited numbers.

Following the Mercedes-AMG PureSpeed, limited to just 250 examples worldwide and featuring an open two-seat configuration without a roof or windscreen, the Mercedes-AMG CLE 646 Spezialanfertigung now joins the series as a road-legal vehicle limited to only 30 examples, with an uncompromising focus on racetrack performance.

It combines a distinctive appearance, outstanding performance and an exceptionally direct driving experience, creating a highly desirable product, so much so that the vehicle was already sold out before its world premiere.

Data overview                                                                                                                                                                                                                                                                                                                                                                                                      

Mercedes‑AMG CLE 646 Spezialanfertigung
Engine		V8 engine with twin-turbocharging and integrated starter generator (ISG)
Displacement	cm3	3,982
Rated output	kW/PS	475/646
at	1/min	6,000-6,250
Rated torque	Nm	850
at	1/min	2,500-4,500
Rated output	kW/PS	17 kW/23 PS
Rated torque ISG	Nm	205
Drive		Rear wheel drive
Transmission		AMG SPEEDSHIFT TCT 9G
Length / Width / Height	mm	4,949/1,987/1,420
Wheelbase	mm	2,875
Kerb weight (DIN)	kg	1,895
Permissible gross vehicle weight	kg	2,130
Weight distribution front / rear	%	56/44
Drag coefficient (Cd) Street / Race		0.402/0.417
Front / rear tyres		305/30 ZR 20 / 335/30 ZR 20
Front / rear wheels		11.0 J x 20 / 12.0 J x 20
Top speed	km/h	310
Acceleration 0-100 km/h	s	3.9
Acceleration 0-200 km/h	s	11.4
Acceleration 0-300 km/h	s	36.8/36.2 (Track / Street)
Combined fuel consumption1	l/100 km	15.8
Combined CO₂ emissions1	g/km	359
CO₂-Class1		G

¹ The figures are preliminary. No confirmed values from an officially recognized testing organization, EC type approval, or certificate of conformity with official values are available at this time. Deviations between the figures and the official values are possible.

2 The specified values were determined in accordance with the prescribed measurement procedure WLTP (Worldwide harmonized Light-duty vehicles Test Procedures). The energy consumption and CO₂ emissions of a passenger car depend not only on the efficient utilisation of fuel or the respective energy carrier by the car, but also on the driving style and other non-technical factors.

Via Mercedes-AMG.

Modificato 11 minuti fa11 min fa da Osv

Che sgorbio il frontale

Davanti è praticamente una M4

Spero sia l’ultimo danno fatto da GW a Mercedes 🤞

3 ore fa, Giacomo 96 scrive:

Davanti è praticamente una M4

Piu un misto tra Audi e BMW.

Praticamente un bodykit alla Need for speed

Primo messaggio aggiornato con immagini e comunicato stampa ufficiale!