Llecentaur wrote:I have done many tests and can confirm that rolling down a gentle slope is clearly more efficient in N than trying to stay in neutral zone while in D.
I can not explain why, other that there is some spinning in the engine, maybe some resistance to the cooling liquid ? Not really qualified nor have the data to conclude.
I'm guessing that it's more difficult to position the accelerator so that no electricity flows in or out of the motor when in any drive mode compared with shifting to N where it's guaranteed that no electricity flows in or out of the motor. So trying to coast in any drive mode will almost certainly result in some electricity flowing in and out of the motor. For me, being able to immediately accelerate or brake without shifting is more important that driving with the utmost efficiency.
I would prefer that E mode would coast without regen when the accelerator is lifted so that the brake pedal would control regen totally. Or maybe better would be a switch that would disable regen in any drive mode except when the brake pedal is pushed.