Actually it's not a matter of a game in my opinion. CO2 produced by ICE cars is responsible of temperature increasing in the world. As temperature increases ice at the North pole melts. As ice melts the salt concentration in the sea decreases. As the salt concentration in the sea decreases the current of the Channel decreases. When the current of the Channel will stop the North side of the Earth will get frozen. Have you seen the film "The day after tomorrow"? This film shows what will happen when the current of the Channel will stop. So driving pure electric is useful to save the Earth. Do you still want to game?