Mercedes Admits It 'Lost Some Customers' After Dropping V-8 in C63
The badge represents a legendary chapter in Mercedes-Benz history, serving as both a tribute to the brand's first V8 production sedan—the 300 SEL 6.3 —and a label for the modern, high-performance "63" series. While modern 63 models often use smaller turbocharged engines, enthusiasts primarily associate the "6.3" lettering with the M156 6.2-litre naturally aspirated V8 , the first engine developed entirely in-house by AMG. The Heritage: 300 SEL 6.3 (1968–1972) 6.3 AMG
It was the fastest production four-door sedan of its era, influencing the creation of future AMG performance models. The Modern Icon: M156 6.2L V8 Mercedes Admits It 'Lost Some Customers' After Dropping
Introduced around 2007, this engine is often called "the 6.3" despite its actual displacement. It is celebrated for its raw, muscle-car character and distinctive, aggressive exhaust note. The Modern Icon: M156 6
Most modern 63 models use a 4.0-litre V8 Biturbo engine (M177/M178), producing significantly more power than the older naturally aspirated versions.
It delivered approximately 250 hp and 500 Nm of torque, reaching 0–100 km/h in 6.5 seconds.