158 kg weight penalty over standard coupe, but still has serious performance. (evo.co.uk)
One point worth considering is that, with the C300h in AMG Line trim, you suffer a 120 kg weight penalty thanks to the electric motor and its lithium - ion battery pack. (evo.co.uk)
Porsche insiders admit the 150 kg weight penalty of an electric motor and batteries would substantially take away from the spirited driving experience we've come to expect from a Porsche. (carsguns.com)