What are the advantages and disadvantages of volvo t5 five-cylinder engine compared to traditional four-cylinder engine

Main advantage: engine NVH (noise vibration). The traditional four-cylinder machine excitation order for the second order, five-cylinder machine excitation order for the 2.5 order. This avoids the inherent frequency of many systems to avoid *** vibration, such as the steering wheel steering column is very easy and four-cylinder engine at idle speed revolutions *** vibration. Excitation order can be understood in this way, four-cylinder machine is four cylinders, each stroke has 2 cylinders working at the same time, it becomes 2 order, five-cylinder machine is 2.5 order.

Major disadvantage: relative to the current mainstream engine technology, namely four-cylinder direct injection. The five-cylinder machine has poor torque at low rpm, and the maximum torque point is usually above 2500, while the new four-cylinder direct injection plus turbo can reach maximum torque at 1500 or even 1200 rpm. The disadvantage of this is that the engine consumes a lot of fuel (relatively) in urban conditions and brings a lot of limitations to the calibration, which has to be further sacrificed for drivability as well as power feel.