Swedish Energy Agency

We’ve seen it in Formula 1 over the years, and Porsche has relatively successfully implanted one in its 911 GT3 R Hybrid race cars, but now Volvo is testing one with an aim to bring it to the world of production cars. We’re of course talking about a Kinetic Energy Recovery System (KERS), a lightweight and relatively cheap ‘hybrid’ technology that Volvo claims can make a four-cylinder engine feel like a six while at the same time reduce fuel consumption by as much as 20 percent. This fall, Volvo will be one of the world's first automakers to test the potential of...