What are the differences between Mercedes-Benz S400 and S450?

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Below are the differences between Mercedes-Benz S400 and S450: 1. Power: The S450 Canadian version is equipped with a 3.0TV6 twin-turbocharged engine, with a maximum power of 245kW (333PS) @5250rpm and a peak torque of 480Nm @1600-4000rpm. The transmission system is a 7-speed automatic transmission. The S400, on the other hand, is a hybrid version, operating on the Atkinson cycle like the THS. Mercedes-Benz engineers modified the intake valve timing of this V6 engine, allowing it to close later than the original S350, to meet the requirement of a compression stroke shorter than the expansion stroke, thereby achieving higher thermal efficiency using the Atkinson cycle principle. 2. Body Specifications: The S450 has body dimensions of 5116×1899×1483mm (length/width/height) and a wheelbase of 3035mm. In the long-wheelbase version, both the body length and wheelbase have been altered, with the long-wheelbase version measuring 5246mm in length and 3165mm in wheelbase. The S400 has body dimensions of 5230*1871*1485.