system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: In car engines, why is better to have multiple smaller diameter pistons rather than a single (or two) large diameter piston(s)?
gpt
Smoothness. 

A standard 4-stroke piston engine only produces power during 1 stroke (actually just a fraction of that stroke).  Power production comes in pulses. Many cylinders means each pulse is smaller and occurs more often. It therefore makes for a smoother operation and does not require as large of a flywheel to dampen the pulses.