OK. That makes sense … if you are on a hill. It still doesn’t explain why someone needs this on at a stop sign or traffic light.It's there because a lot of people have never driven a manual transmission and are really caught off-guard when they lift their foot off the brake and the car starts to roll back. Again, I have the SUV, which free-rolls very easily. It's a feature that on some streets in SF, I had wished my manual transmission ICE had available. Fact is, though, it I have Hold Assist on my shortcuts screen because: 1) it should be disengaged if going through an automatic car wash, or similar situation; 2) having it activated makes parallel parking much more of a jerky pain. For the SUV, at least, I think parallel parking the etron on a hill is about the most difficult maneuver you have to deal with. Much trickier than in an ICE, either automatic or manual transmission.
On my Teslas, I just kept “creep mode” on which accomplished what you are describing without having to lock the brake system. It programmed the car to behave like an ICE car that was using engine torque to move forward if you let off the brake. I was always surprised when folks said they turned that off.
That being said, your earlier post said that the GT had the always on … that its transmission always had some type of “pull” in place.
So the question remains, if the GT doesn’t keep a completely neutral stance, and always behaves like an ICE manual transmission … then why does someone need this feature activated. You certainly don’t need it for stop signs/traffic lights and if the transmission on the GT always has some ”pull” then even when parallel parkin on a hill, you should be fine.
BTW: for some reason, I keep thinking about Bill Colby’s old schtik about driving in San Francisco in his Volkswagon Bug and having someone put a fake stop sign at the top of the hill, then watching with binoculars and saying “look Martha we got another one”. And his whole punchline of dying while drifting backwards into the Bay in his VW Bug because he couldn’t shift fast enough to get started from the stop sign.
Oh well. Yeah, I’m old.