As everyone who's driven a Prius knows, the EV mode works only with the gentlest of acceleration. In city driving, the initial acceleration from a traffic stop is enough to take the Prius out of EV mode, and then once the foot is off the accelerator, EV mode starts again immediately. In day to day traffic, I see this constant toggling of EV mode/ICE when I need to drive at slow speeds, but still need to accelerate occasionally. Does the Prius have an efficient mechanism to turn on the ICE to support this frequent turning on and off the ICE? I read somewhere (cant find the link now) that starting the ICE takes 1% off the SoC of the traction battery. Does this hold even when the car is in motion? I understand that above 42 mph the ICE is always turning, so in that case ICE turning on and off is not an issue. I am more concerned about city stop and go traffic under 40mph, where the ICE kicks in each time the accelerator is pressed. Apologies if this has been covered elsewhere, but even after extensive searching in this forum and elsewhere, I've not been able to find anything related to this query.