What does the 'ECO' button do on a Vauxhall Astra?

I recently purchased a Vauxhall Astra and noticed a button labeled 'ECO' on the dashboard. What does this button do and how can it affect my driving experience?

The 'ECO' button on a Vauxhall Astra is designed to improve fuel efficiency and reduce emissions by adjusting certain vehicle settings. By pressing the button, the engine power and torque are reduced, as well as the air conditioning and heating systems, to help conserve fuel.

I've found that the 'ECO' mode is most effective during city driving or in heavy traffic. It helps to reduce fuel consumption and emissions in stop-and-go situations.

However, if you're on the highway or need a quick burst of power, you can always turn off the 'ECO' mode by pressing the button again. It's important to note that the 'ECO' mode may not be suitable for all driving situations, so use it wisely.