by the millisecond.
Four engines, each with a pair of turbos, offer superlative performance by any measure. The CL550's 429-hp Direct Injection V-8 doesn't just get you from 0 to 60 more quickly, it fine-tunes its performance countless times along the way, often in less than a millisecond. The CL600's 510-hp V-12 blends superlative thrust with supernatural smoothness. And two AMG engines, a 536-hp V-8 and a 621-hp V-12, unleash a stampede of handcrafted horsepower.