Compared with the V6 engine, this in-line 6-cylinder engine has obvious advantages. The simple cylinder structure reduces the manufacturing cost. For example, there is no need to install two sets of camshaft and the valve train is simpler; The NVH performance of straight 6 is better than that of V6; In terms of more peripheral accessories of the current engine, the space advantage of straight 6 is more obvious; It's simpler in terms of maintenance. For the overall production strategy of this straight 6 engine, the new 4-cylinder engine and 6-cylinder engine will belong to the same branch, and their combustion chambers are basically the same, with 90mm cylinder center distance, so they can be produced in one production line. At present, the performance and technical characteristics of the V6 engine widely used by Mercedes Benz are different from that of the straight 6 engine. Obviously, the straight 6 engine is the trend in the future