6.3 Amg -

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. 6.3 AMG

Following the naturally aspirated era, Mercedes-AMG transitioned to smaller, forced-induction engines while retaining the iconic "63" badge to signify top-tier performance. Most modern 63 models use a 4

The original 300 SEL 6.3 was a "sleeper" sedan that combined a luxury chassis with the massive 6.3L M100 V8 from the 600 limousine. The original 300 SEL 6

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)