Thirty cars. That is the entire production run of the Mercedes-AMG CLE 646 Spezialanfertigung, and Mercedes-Benz sold every one of them before the car had made a single public appearance.
The order book closed ahead of the September 10 world premiere, when the CLE 646 arrived as the second model in the Mercedes-Benz Mythos Series — a program built for a customer who already owns the fast car and wants something the rest of the world can't order.
AMG's home plant built the CLE 646 by hand, according to Mercedes-Benz, the same way it built the first Mythos car, the roofless, windshield-less PureSpeed limited to 250 examples. The CLE 646 takes a different path. It keeps its windshield. It keeps its road registration. And it channels its ambition into driving dynamics rather than spectacle, which makes it, by AMG's own account, the more usable of the two.
The starting point was the AMG CLE 53, a car already built around a turbocharged inline-six and standard all-wheel drive. AMG's engineers removed the all-wheel-drive system entirely. Power now reaches the rear wheels only, routed through an electronically controlled limited-slip differential tuned to support a controlled drift rather than correct one out of existence. Launch Control was recalibrated for the new rear-drive layout. The result is a run from zero to 124 miles per hour in 11.4 seconds, and a top speed of 193 miles per hour — numbers AMG confirmed at the car's launch rather than projected ahead of it.
Under the hood sits an extensively reworked version of AMG's M177 EVO, a 4.0-liter twin-turbo V8 that produces 646 horsepower, the figure behind the car's name.
That represents a jump of more than 200 horsepower over the CLE 53's inline-six, and AMG built a suspension specifically to manage it: a steel coilover system co-developed with KW Automotive, with four-way adjustable dampers that let an owner tune low-speed and high-speed rebound and compression independently. Body movement under braking, acceleration and turn-in each answer to their own setting, a degree of adjustability that owes more to a customer racing program than to a factory options list.
Weight came out wherever AMG's engineers could take it.
Carbon fiber panels replace steel and aluminum across the body. The rear windows are polycarbonate instead of glass. Even the 12-volt starter battery was swapped for a lighter unit. Altogether, the CLE 646 weighs roughly 375 pounds less than the CLE 53 it started as — a reduction the company says sharpens what it calls an uncompromisingly direct driving experience, and one that shows up in every corner of the car rather than in a single headline component.
The body itself grew to make room for what sits underneath it. A widebody treatment pushes the car's track out 2.4 inches, and a purpose-built aerodynamics package was developed alongside that wider stance rather than bolted onto it afterward. Little of it reads as decoration. Every visible change traces back to the car's stated purpose — closed-circuit lap times and back-road precision, not showroom presence.
The line captures the project's spirit better than a spec sheet could. A small internal team built a prototype first and worked backward into a production process from there, treating the car less as a collection of upgrades and more as a performance system reimagined from the ground up. That approach is built into the name itself.
Spezialanfertigung translates roughly to "special-order fabrication," and Mercedes says the designation reflects the depth of the rebuild rather than a marketing flourish borrowed for the occasion.
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Mercedes-Benz launched the Mythos Series to give its most committed collectors something beyond a badge or a horsepower bump: cars built in numbers small enough that ownership itself becomes part of the story.
The PureSpeed leaned into theater — no roof, no windshield, a design built to be looked at as much as driven, and a run of 250 units that still sold out. The CLE 646 leans the other way, toward function, and in doing so makes the case that restraint can be its own kind of statement. It is also the first Mythos car a buyer can drive on public roads without qualification, since the PureSpeed's open cockpit limited where and how it could legally be used.
The timing carries its own weight.
Mercedes-Benz is marking 140 years since Carl Benz patented the first automobile in 1886, and the company has built its 2026 calendar around that anniversary — a flagship S-Class driving to 140 locations across six continents, a steady run of new and updated models across nearly every segment, and now a hand-built V8 coupe that exists almost entirely outside the normal sales channel.
Energy consumption is rated at 15.8 liters per 100 kilometers combined, with CO2 emissions of 359 grams per kilometer, placing the CLE 646 in the top emissions class — figures that matter less to the buyers who already own one than to the engineers who had to account for them anyway.
Each car is assembled entirely by hand at AMG's Affalterbach headquarters, the same facility where the company builds its engines under the one-person, one-engine practice that has defined AMG since the 1990s. That philosophy extends to the CLE 646 in full.
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Where a standard CLE moves through a conventional production line, the Spezialanfertigung moves through a manufactory process more common to a coachbuilder than a mainstream automaker — panel fitment, suspension calibration and interior trim handled individually rather than at volume. It is a slower, costlier way to build a car, and it is also the only way AMG could credibly claim the level of precision the CLE 646 is meant to represent.
Mercedes has not disclosed pricing for the CLE 646, and because the car sold out before its public unveiling, an official figure may never surface.
What is confirmed is scarcity by design: 30 cars, every one already accounted for, none of them destined for a dealership showroom floor. The Mythos Series moves through AMG's direct client relationships rather than standard retail allocation, meaning buyers were identified and confirmed well before September's debut.
For AMG, the CLE 646 is a statement about where the performance brand wants to stand as Mercedes-Benz moves through a stretch of major rollouts across its lineup. Surrounded by electrified SUVs and software-driven sedans, a hand-built, rear-drive V8 coupe with dampers tuned car by car reads almost as a rebuttal — proof that the division still designs from the driving experience outward rather than from a features list backward. Whether that proof reaches anyone beyond the 30 confirmed owners is, in its way, beside the point. The CLE 646 was never built to be sold. It was built to exist.
(Sources: Mercedes-Benz Media, Motor1)
Quick Answers
The Mercedes-AMG CLE 646 Spezialanfertigung is the second model in Mercedes-Benz’s Mythos Series, a highly limited collector program built on select AMG platforms. Based on the AMG CLE 53, it swaps standard all-wheel drive for rear-wheel drive only, produces 646 horsepower from a reworked 4.0-liter twin-turbo V8, and weighs about 375 pounds less than the car it’s built from. Mercedes-Benz is building 30 examples by hand at AMG’s Affalterbach headquarters, and every unit sold before the car’s September 10, 2026 public debut. Pricing has not been disclosed. The car is not available through standard dealer allocation, including at Loeber Motors, and buyers were selected through AMG’s direct client program rather than retail order.
Frequently Asked Questions
1. What is the Mercedes-AMG CLE 646 Spezialanfertigung?
It is a hand-built, rear-wheel-drive high-performance coupe based on the AMG CLE 53, produced in a run of 30 examples as the second model in Mercedes-Benz’s Mythos Series.
2. How much horsepower does it have?
The reworked AMG M177 EVO 4.0-liter twin-turbo V8 produces 646 horsepower (475 kW), more than 200 horsepower above the standard CLE 53.
3. Is it all-wheel drive like the standard CLE 53?
No. AMG removed the CLE 53’s all-wheel-drive system entirely; the CLE 646 sends power to the rear wheels only, through an electronically controlled limited-slip differential.
4. How fast is it?
Mercedes-AMG confirms 0 to 124 mph in 11.4 seconds and a top speed of 193 mph.
5. How many will be built, and can I still order one?
Production is limited to 30 units worldwide, and Mercedes-Benz confirmed all 30 were sold before the car’s September 10, 2026 world premiere.
6. What does the car cost?
Mercedes-Benz has not released official pricing. Because the run sold out before launch, an official figure may not be published.
7. Will the CLE 646 Spezialanfertigung be available at Loeber Motors?
No. Mythos Series vehicles are allocated through AMG’s direct client relationships rather than standard dealer inventory, so it will not appear in Loeber Motors’ retail lineup.
Key Specifications
Engine: AMG M177 EVO 4.0-liter twin-turbo V8
Output: 646 hp (475 kW), rear-wheel drive
0-124 mph: 11.4 seconds
Top Speed: 193 mph (310 km/h)
Weight Reduction: Approximately 375 lbs (170 kg) versus AMG CLE 53
Production: 30 units, hand-built in Affalterbach, Germany
Availability: Sold out before public debut; not available through standard dealer allocation
