What is the difference between D gear and S gear in an automatic transmission car?

[LaAbel]

The difference between D gear and S gear in an automatic transmission car lies in their functions: D gear is the drive gear, used for normal forward driving; S gear is the sport gear, typically used for climbing hills and rapid overtaking. When the gear is in D, the driver does not need to control the gear shift and can simply operate the accelerator and brake to drive. In S gear sport mode, the transmission can shift freely, but the shift timing is delayed, keeping the engine at high RPM for a longer period. An automatic transmission eliminates the need for the driver to manually shift gears, as the vehicle automatically selects the appropriate gear based on driving speed and traffic conditions. Generally, automatic transmission cars have six gear positions, arranged from top to bottom as: P, R, N, D, S, L.