The car has a start stop system which switches the engine off when you come to a traffic light, brake energy regeneration system and more. (auto.ndtv.com)
The advantages of this arrangement are lower friction losses, lighter weight, and more efficient energy regeneration. (automobilemag.com)
A belt - driven motor generator, 48 - volt lithium - ion battery and brake energy regeneration make up the hybrid unit. (cnet.com)