What does the E gear in a car mean?

[EmilioFitz]

E gear stands for Ecology mode, also known as energy recovery mode. Although it is also used for forward movement, it is more economical, commonly referred to as the power-saving gear. The E gear, like the D gear, can be used for daily driving. Using the E gear can save approximately 10% to 30% of electricity, especially when going downhill, where the kinetic energy from the descent can be converted into electricity to charge the battery, achieving the goal of power saving. How ECO mode works: It can be achieved by changing the gear shift timing of the transmission, altering the sensitivity of the accelerator pedal, and adjusting the output power of the air conditioning system. In ECO mode, the transmission shifts gears earlier, resulting in the engine feeling somewhat less powerful and the vehicle's acceleration performance being reduced. Changing the sensitivity of the accelerator pedal means that, while the engine responds immediately when the pedal is pressed under normal conditions, there is a delay of a few seconds in ECO mode. Some vehicle models also limit the usage power of the air conditioning in ECO mode to reduce the engine's load and lower fuel consumption.