For many years, vehicle gear systems followed simple and familiar patterns. Manual cars used numbered gears with “R” for reverse, while automatic vehicles commonly showed “P,” “N,” “D,” and “R.” Because these layouts became standard, most drivers rarely questioned the meaning behind the letters on the gear selector.

That changed when some drivers noticed an unusual “E” on older vehicles. Younger drivers especially may not recognize it today because the symbol has nearly disappeared from modern cars. In many classic vehicles, the “E” stood for “Economy,” a feature created to improve fuel efficiency and reduce fuel consumption during everyday driving.

When drivers activated Economy mode, the vehicle adjusted engine and transmission behavior to save fuel. The system often lowered engine RPM, softened throttle response, and changed shift timing to focus on efficiency instead of speed or strong acceleration. Drivers mainly used it during highway trips or steady driving because it helped save money on fuel, even if the car felt slightly slower.

The feature became popular during periods when fuel costs and energy conservation were major concerns. Older cars required drivers to manually choose between performance and efficiency, giving them more direct control over how the vehicle operated. The article describes it as “an important period in automotive history” when manufacturers worked on balancing “power, comfort, and fuel economy.”

Today, dedicated Economy settings are far less common because modern vehicles use advanced computer systems that automatically manage fuel efficiency and performance in real time. Interestingly, the meaning of the letter “E” has also changed over the years, as many people now connect it with electric vehicles and environmentally friendly transportation. Even though the old Economy gear has mostly disappeared, it remains a reminder of how automotive technology evolved from simple mechanical systems into advanced computerized driving systems.