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)
Built on the "One Man, One Engine" principle, where a single technician hand-assembles and signs the engine plate. Evolution of the "63" Badge 6.3 AMG
In standard form, it typically produced 451 to 518 hp and up to 630 Nm of torque. The badge represents a legendary chapter in Mercedes-Benz
Most modern 63 models use a 4.0-litre V8 Biturbo engine (M177/M178), producing significantly more power than the older naturally aspirated versions. Evolution of the "63" Badge In standard form,
The latest C63 AMG models have moved toward a 2.0-litre 4-cylinder hybrid setup, still carrying the "63" name as a performance designation rather than a reference to displacement.
Mercedes Admits It 'Lost Some Customers' After Dropping V-8 in C63