What does the 'S' button on the Kia Picanto do?

I just bought a Kia Picanto and I noticed a 'S' button on the dashboard. What does it do and when should I use it?

The 'S' button stands for 'Sport' mode. It changes the way the car's gears shift, resulting in a more responsive and dynamic driving experience. You can use it when you want to have some fun while driving or when you need to overtake another vehicle quickly.

The 'S' button activates the car's 'Smart Shift and Drive' system. This system optimizes the car's acceleration and deceleration based on your driving habits and the road conditions. It's recommended to use it on long drives for a smoother and more efficient driving experience.

The 'S' button is for 'Start-Stop' functionality, which stops the engine when the car is idle and restarts it when you lift your foot off the brake. This helps improve fuel efficiency and reduce emissions. Use it in heavy traffic to conserve fuel.