This engine had a high-pressure die-cast alloy cylinder block with twin-wire arc spray coated running surfaces. Compression ratio is 11.3:1. According to many auto journalists, the E 63 AMG was one of the quickest production sports sedans in the world. Both the sedan (saloon) and wagon had a 0–60 mph (97 km/h) acceleration time of 4.3 seconds. Compared to the previous E 55 AMG, the E 63 AMG had more horsepower but less torque, enabling it to be mated to the newer 7G-Tronic automatic transmission.