The Mercedes-Benz M120 is a naturally aspirated, 6.0-liter, 48-valve V12 gasoline piston engine produced from 1991 to 1999. It is widely celebrated for its immense smoothness, 389–408 horsepower output, and legendary durability.

Specifications and PerformanceDisplacement: 6.0 liters (5,987 cc)Configuration: 60-degree V12, DOHC with 4 valves per cylinderHorsepower: 389 to 408 hp (290 to 300 kW) @ 5,200 RPMTorque: 420 to 428 lb-ft (570 to 580 N·m) @ 3,800 RPMBlock/Head: Aluminum block and aluminum cylinder heads with forged steel connecting rods

Applications and LegacyMercedes-Benz Models: Debuted in the W140 600 SE/SEL (later S600) and was used in the C140 (600 SEC/CL 600) and R129 (600 SL/SL 600).AMG Variants: Tuned versions like the 7.0L and 7.3L powered extreme machines including the SL 73 AMG and custom W140 wagons.Supercars: A modified variant served as the foundation for the original Pagani Zonda's powerplant, chosen for its melodic exhaust note and bulletproof integrity