Mercedes-AMG CLE 646 Spezialanfertigung: 637 HP Limited

Hand-built V8 flagship revives AMG Mythos line

Mercedes-AMG has quietly ushered a new halo car into its Mythos series: the CLE 646 Spezialanfertigung. Built by hand in Affalterbach and based on the CLE 53 platform, this ultra-limited coupe is a focused return to raw V8 performance — a purpose-built machine for collectors and driving enthusiasts that mixes old-school character with modern engineering.

What makes the CLE 646 special?

At its core sits a reworked AMG M177 4.0-liter V8 biturbo, tuned to deliver 646 PS (about 637 hp) and a hefty 627 lb-ft of torque across a broad band from 2,500 to 4,500 rpm. AMG removed the donor car's all-wheel-drive system and converted the drivetrain to a pure rear-wheel-drive layout through the AMG Speedshift TCT 9G gearbox, emphasizing driver engagement and a more analog driving experience.

Lightweight engineering is as much a priority as power. Through extensive use of carbon fiber, polycarbonate windows, titanium in the Akrapovic-developed exhaust, and the deletion of rear seats and acoustic insulation, the CLE sheds roughly 375 lbs (170 kg) versus the standard model. The result is a coupe that promises sharper dynamics and a direct connection between driver and pavement.

Design and aero: widebody for road and track

The Spezialanfertigung flaunts a bespoke widebody kit that widens the track by around 2.4 inches at both ends, combined with a manually adjustable rear wing and a large integrated rear diffuser. Carbon-fiber components are everywhere: front fenders, bumper inserts, side skirts, hood with a central cold air intake, roof, and rear apron. Even the rear side windows and rear screen are lightweight polycarbonate to minimize mass.

Exterior highlights:

• Exclusive two-tone matte finish: Mojave Silver Magno forward, Obsidian Black Magno aft
• 20-inch AMG Performance forged wheels with 335/30 ZR 20 rear tires
• Manually adjustable rear wing for track tuning

These changes are not just cosmetic: AMG says the aero and wider tracks are developed for demanding road and circuit use, hinting at strong high-speed stability and improved cornering potential.

Suspension, brakes and chassis tuning

Handling is entrusted to a bespoke coilover suspension engineered in collaboration with KW Automotive, offering four-way adjustable dampers for fine control across road and track. Braking duties fall to the AMG Ceramic High-Performance Composite system for fade resistance under heavy use. A standard internal roll bar augments torsional rigidity, and an optional Performance Package adds six-point harnesses and other track-focused features.

Performance numbers and driving character

Performance figures underline the car's intentions: 0-62 mph in under four seconds, and a sprint to 124 mph in 11.4 seconds. Top speed is claimed at 193 mph. The flat-plane crank setup and titanium Akrapovic exhaust give the V8 a more aggressive soundtrack and faster rev response than a cross-plane layout, reinforcing the car's visceral appeal.

Enthusiasts will note the connection to AMG heritage — Mercedes-AMG traces the project line back to legendary models like the AMG 300 CE 6.0 'Hammer', while the CLE 646 follows the PureSpeed as the second Mythos offering. Production is extremely limited: just 30 units, each handcrafted in Affalterbach.

Interior: Spartan, performance-focused cabin

The interior favors function over luxury. Carbon fiber door panels, ultra-lightweight racing bucket seats for driver and passenger, and a stripped-back sound system keep weight down. There are no rear seats and minimal acoustic insulation, emphasizing a direct and unfiltered driving experience. Buyers seeking additional safety and harness options can choose the Performance Package.

Market positioning and outlook

Rumors put the asking price in the seven-figure range — some suggest near $800,000 — but pricing matters little: the CLE 646 Spezialanfertigung reportedly sold out before its public debut. Its exclusivity, hand-built provenance, and V8 character position it as a modern collectible aimed at wealthy enthusiasts and AMG collectors who value rarity, mechanical purity, and track capability.

Where it fits in the market:

• A halo product that elevates the Mythos sub-brand
• A visceral alternative to electrified performance models
• A likely future classic because of limited run and manual-like driving focus

Will it tackle the Nordschleife?

One unanswered question is whether AMG will run the CLE 646 at the Nürburgring Nordschleife. Given the car's track-oriented enhancements and the brand's history with lap records, a timed run would be the perfect stage to quantify the package. Either way, the CLE 646 is meant to be driven hard rather than admired in a glass case.

Quick spec summary

• Engine: AMG M177 4.0-liter V8 biturbo (flat-plane)
• Power: 646 PS / 637 hp
• Torque: 627 lb-ft (2,500-4,500 rpm)
• Drivetrain: Rear-wheel drive via AMG Speedshift TCT 9G
• Weight savings: approx. 375 lbs (170 kg)
• Production: 30 hand-built units in Affalterbach
• Top speed: 193 mph

To paraphrase Stefan Weckbach, the CLE 646 is the distilled essence of AMG: a bold project born from engineers who let passion override pure logic, crafted to deliver uncompromising driving dynamics. For collectors and drivers craving a pure V8 experience in a modern package, the CLE 646 Spezialanfertigung will be hard to ignore.