Why does the Audi R8 V10 Plus have an engine stop-start function?

I've noticed that the Audi R8 V10 Plus has an engine stop-start function that turns off the engine when the car is at a standstill. Why is this feature included and how does it work?

The engine stop-start function is included in the Audi R8 V10 Plus to improve fuel efficiency and reduce emissions. The engine automatically turns off when the car is at a standstill and restarts when it's ready to move again. This helps save fuel and reduce the car's carbon footprint.

The engine stop-start function is also beneficial for reducing noise and vibration in the car when at a stop. This allows for a quieter and more comfortable driving experience. However, it can also be disabled if desired.