What is the difference between automatic D and automatic S?

[LunaRose]

The differences between automatic D and automatic S are: 1. The automatic control logic for gear shifting is different: D gear is oriented towards comfort and economy; S gear is performance-oriented. 2. The response speed varies: when shifting into S gear, if the accelerator is suddenly pressed while driving, S gear will react quickly; D gear will slightly delay until it confirms the driver's intent for rapid acceleration before upshifting. 3. Fuel consumption differs: when in S gear, the higher RPM leads to increased fuel injection, resulting in higher fuel consumption; in D gear, the vehicle runs smoothly with lower fuel consumption. 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.