How does the Audi A1's efficiency features contribute to its performance?

I'm wondering how the advanced efficiency systems in the Audi A1, such as the start-stop system and recuperation, actually improve the car's overall performance. Do these features make a noticeable difference in driving experience?

The Audi A1's efficiency features play a crucial role in its performance. The start-stop system shuts off the engine when the car is stationary, reducing fuel consumption and emissions. The recuperation system captures and stores energy while braking, which can be used to power the car later on. These features contribute to smoother and more efficient driving, resulting in an overall improved performance.