SageBrush wrote:What you call 'snark' is my annoyance at your hubris.
You misunderstand Prime operation, and specifically its HOLD mode. I'll leave it at that.
And I've asked you to correct my misunderstanding, if that's in fact the case, so how does that constitute hubris? If you don't wish to do this for my benefit (as noted, the Prime wouldn't be my choice for other reasons as well), then why not do it for others? The Prime has 4 modes, and both Mode 1 (EV) and Mode 2 (EV Auto) are out as far as hold modes. Mode 3 (HV mode) comes close, but still falls short of a true hold mode. Per the manual:
Switching to HV mode when driving on a highway or
when driving uphill is recommended in order to conserve battery
That sounds like a true Hold mode, but note the asterisk:
*: The EV driving range may reduce even after switching to HV mode.
The description of HV mode goes into more detail:
When in HV mode
The vehicle can be used in the same way as a standard hybrid
In HV mode, controls are primarily carried out as follows in accordance
with the driving conditions.
The gasoline engine stops* when the vehicle is stopped.
During start off, the electric motor (traction motor) drives the vehicle.
During normal driving, the gasoline engine and electric motor
(traction motor) are controlled effectively, and the vehicle is
driven with optimum fuel efficiency. Also, when necessary, the
electric motor (traction motor) operates as an electrical generator
to charge the hybrid battery (traction battery).
When the accelerator pedal is depressed heavily, drive force
from both the gasoline engine and the electric motor (traction
motor) is used to accelerate.
Thus, while close it's not a true hold mode, where use of the battery is entirely under the driver's control and no matter what you do with the accelerator the battery will never be used. I want that level of control (I've also always driven manual transmission cars for similar reasons, and want gears and/or regen levels I can select rather than CVTs and being limited to just one or two levels of regen). And Mode 4, Hybrid battery (traction battery) charge mode only makes sense if you're heading into a ZEV-only zone and you don't have adequate battery charge, but the last thing I want to do is use a gas-fueled ICE to charge a battery while driving, and there are currently almost no (none?) ZEV-only zones in the U.S. to make that necessary.