How efficient is the regenerative braking system in the BMW iVision?

I'm considering purchasing the BMW iVision and I've heard it has a regenerative braking system. How does this system work and how effective is it in conserving energy during driving?

The regenerative braking system in the BMW iVision is highly efficient and can contribute significantly to conserving energy while driving. It works by using the kinetic energy created by the vehicle's movement to recharge the battery, instead of dissipating it as heat like traditional braking systems.

I actually own a BMW iVision and can say from personal experience that the regenerative braking system is impressive. It not only helps to conserve energy but also provides a smooth and comfortable braking experience.