Mercedes-Benz CLK 63 AMG Black Series
The Mercedes-Benz CLK 63 AMG Black Series holds a pivotal place in AMG's history as the car that inaugurated the modern Black Series lineage — a family of extreme, track-focused variants that would grow to include the SL 65, C 63, and SLS AMG Black Series models. Launched in 2008, the CLK Black Series took the already potent CLK 63 AMG and transformed it into something altogether more serious, more focused, and more visceral.
The foundation was AMG's magnificent M156 naturally aspirated 6.2-liter V8 engine, hand-assembled by a single technician in Affalterbach under AMG's celebrated 'One Man, One Engine' philosophy. In Black Series specification, the engine was tuned to produce 507 horsepower at 6,800 RPM and 630 Nm of torque at 5,250 RPM — increases of 32 horsepower and 60 Nm over the standard CLK 63. The upgrades included revised intake manifolds, optimized exhaust flow, reprogrammed engine management, and lighter rotating components. The resulting powerplant was one of the finest naturally aspirated V8s ever built, with a spine-tingling soundtrack that climbed from a deep rumble at idle to a feral howl at the 7,200 RPM redline.
The bodywork was extensively reworked. Wider front and rear fenders, flared by 43mm at the front and 59mm at the rear, accommodated a wider track and substantially larger wheels and tires. The front bumper was redesigned with larger air intakes to feed additional cooling radiators. A prominent front splitter, extended side skirts, and a fixed rear wing generated meaningful aerodynamic downforce. The overall effect was aggressive and purposeful — the Black Series looked like a race car wearing a thin veneer of road legality.
The chassis received equally thorough attention. Stiffer springs, recalibrated adaptive dampers, and revised anti-roll bars sharpened the handling responses dramatically. The steering was retuned for more direct feel, and the 7-speed AMG Speedshift Plus automatic transmission received shorter shift times with more aggressive programming. New compound brake discs — 390mm at the front and 360mm at the rear — provided the stopping power needed to match the car's significantly elevated performance envelope.
Inside, the transformation was equally radical. The rear seats were deleted entirely, replaced by a structural brace and carpet-covered shelf. The front seats were replaced with fixed-back carbon fiber racing buckets, fitted with four-point harness provisions alongside the standard three-point belts. The dashboard was trimmed in Alcantara, and AMG-specific instrumentation included a lap timer. A flat-bottomed steering wheel provided additional clearance and a racy aesthetic.
Weight savings were significant throughout. The aluminum hood, carbon fiber front splitter, and deletion of rear seats and associated trim combined to reduce curb weight versus the standard CLK 63. Every kilogram saved translated directly into improved acceleration, braking, and cornering performance.
Only approximately 500 CLK 63 AMG Black Series cars were built during the 2008-2009 production run, making it one of the rarer modern AMG products. The car was offered in a limited palette of colors, with Obsidian Black being the most common and special-order hues being exceptionally rare. Each car left the factory as a statement of AMG's engineering capabilities — a tangible demonstration that Affalterbach could build cars competitive with the best from Porsche, Ferrari, and BMW's M division.
The CLK Black Series proved that a modified luxury coupe could deliver genuine supercar performance. Its naturally aspirated V8, with its linear power delivery and intoxicating exhaust note, is particularly prized in an era increasingly dominated by turbocharged engines. Values have risen steadily as collectors recognize both its historical significance as the first Black Series and the purity of its driving experience.
Verify authenticity — the Black Series should have its specific VIN designation and build sheet confirming M156 Black Series engine, widebody panels, and fixed-back seats. Check the M156 engine for the known head bolt issue that can cause coolant intrusion in cylinders 6 and 8 — Mercedes issued a technical service bulletin for this. Inspect front splitter and rear wing for stone chip and curb damage. Racing bucket seats may show bolster wear. AMG Speedshift transmission should shift crisply with no hesitation. Compound brake discs are expensive to replace (approximately $3,000 per axle). Service history with AMG specialists is essential. Track use history should be disclosed and understood.
Approximately 500 units built during 2008-2009. Engine hand-built under AMG's 'One Man, One Engine' program. Available only as a 2-seater coupe — rear seats deleted from factory. Limited color palette including Obsidian Black, Iridium Silver, Fire Opal Red, and Arctic White. Not all colors were available in all markets. US-spec cars had slightly different bumper treatment. The M156 6.2L V8 was the last naturally aspirated AMG engine of this displacement.