Mercedes-AMG has chosen the CLE for a special series built around a formula that is increasingly rare in high-performance production: a front V8, drive sent exclusively to the rear wheels, and a deep overhaul of the mechanicals even before touching the aesthetics. It is called the Mercedes-AMG CLE 646 Spezialanfertigung, will be limited to just 130 units, and does not yet have an announced price.
The German term Spezialanfertigung, literally referring to a custom-made creation, accurately describes the car's positioning. This is neither a simple trim level of the CLE coupe nor an aerodynamic package paired with extra power: AMG has modified track widths, suspension, brakes, bodywork, and the cabin to deliver an offering positioned well beyond the standard lineup versions. In the Affalterbach division's recent catalog, the closest cultural reference point is that of Black Series models such as the CLK and C 63, cars remembered above all for their uncompromising setup on track and road.
The 646 also arrives at a significant juncture for Mercedes-AMG. While much of the recent lineup has pivoted toward electrified architectures and, in many cases, all-wheel drive, this coupe revives a direct mechanical configuration. It retains light 48-volt electrical support, but its character stems from the internal combustion engine and the decision to route its output to a single axle.
The new V8 is the core of the project
Debuting under the hood is the new AMG 4.0-liter flat-plane crankshaft V8 with twin turbochargers. Claimed output stands at 636 hp at 6,000 rpm, while peak torque reaches 850 Nm. It is a powertrain that Mercedes-AMG plans to deploy across other new models as well and which, according to official statements, incorporates solutions designed to reconcile high performance with compliance with European emissions standards.
The unit works in tandem with a 48-volt electrical system and an integrated starter-generator capable of supplying up to an additional 23 hp and 205 Nm to the transmission. Its primary role, however, remains efficiency rather than turning the CLE 646 into a high-performance hybrid. It is an important distinction: electrification here supports a traditional V8 engine rather than defining the car's dynamic response.
The transmission is a nine-speed TCT paired with an electronically controlled rear limited-slip differential. All power is sent to the rear wheels, a choice that distinctly sets the Spezialanfertigung apart from many current AMGs. Mercedes claims a 0 to 100 km/h sprint in 3.9 seconds: a figure just a tenth of a second quicker than the six-cylinder CLE 53 4Matic, but the numerical comparison tells only part of the story. Rear-wheel drive inherently requires more careful traction management under acceleration, precisely where all-wheel drive can offer an immediate advantage.
For this reason, AMG fitted a variable traction control system, similar in setup to the one already used on models such as the previous AMG GT R. The goal is to make 850 Nm of torque usable through just two driven wheels, while still providing dynamics distinct from all-wheel-drive AMGs. Pure straight-line acceleration does not appear to be the only metric by which to evaluate the 646: rear-axle control, progressiveness at the limit, and the level of driver engagement required are equally important.
Wider bodywork, dedicated chassis, and reduced weight
The transformation continues beneath the coupé's skin. The bodywork has been widened by 60 millimetres to accommodate wider tracks, which are sturdier than those of the conventional CLE. This is not merely a cosmetic change: the increased width accompanies chassis modifications necessary to withstand the loads, tyres, and lateral forces of a car with this level of power and this drivetrain configuration.
The suspension is bespoke, featuring four-way adjustable dampers developed with KW Automotive, shorter steel springs, and more aggressive geometry. For a limited-edition vehicle, these choices clearly reflect the priority given to setup adjustability and dynamic driving. The ability to fine-tune the dampers allows the car's response to be adapted to different scenarios, but it also introduces greater complexity compared to a setup primarily focused on everyday comfort.
Up front, 420 mm carbon-ceramic brakes come standard. The package is rounded out by 20-inch forged wheels and a series of weight-saving measures. AMG has introduced polycarbonate side and rear windows, alongside front fenders and a hood made from carbon fiber. The cabin has also been lightened and trimmed with extensive use of the same material. These changes are consistent with a car that sheds some of the conventional refinement of a luxury coupe to prioritize responsiveness, braking, and chassis dynamics.
The visual result is inevitably more muscular than the CLE from which it is derived. However, the increased track width and carbon components are primarily the outcome of an engineering project: AMG had to build a setup around the engine and rear-wheel drive capable of managing performance levels that, on a conventional car, would have demanded far heavier compromises.
A special series signaling a dual direction for AMG
The CLE 646 Spezialanfertigung does not alter the overall strategy of Mercedes-AMG, which continues to develop electrified models and increasingly complex performance systems. Yet it demonstrates that the brand still sees a viable niche for highly distinctive internal combustion products, particularly when volumes are low and pricing is free from mass-production constraints.
The decision to cap production at 130 units is also central from an industrial standpoint. A chassis with widened tracks, carbon panels, polycarbonate glazing, and adjustable dampers requires components and assembly processes that are difficult to scale to high volumes. The limited run allows AMG to focus these solutions in a halo model aimed at clients seeking exclusivity as well as an unmistakable technical identity.
It remains to be seen which markets will receive the car and what its price tag will be, two details Mercedes-AMG has yet to disclose. Even without this information, the CLE 646 establishes a clear position in the range: not just another coupe chasing a faster 0-100 sprint, but a vehicle focused squarely on a V8, weight reduction, adjustable setup, and the rear axle. Across an increasingly diversified AMG portfolio, it signals that the heritage of the Black Series remains a viable blueprint for building strictly limited iconic models.
