went for a quick drive. it would be hard to do extensive testing without someone riding along and recording results and a lot more open ground and daylight. In D the car from a stop shifted to second at 4500 rpm once and 4000 rpm another time. i went wot as best as i could. it did the same thing from 2nd to 3rd 4500 and 4000 rpm shifting. mph in at 2nd was right before 40 (I was wrong what i wrote earlier). third was about 60. i couldn't go much faster than that because i wasn't on highway i was on back streets in the city in new developments.
tried to manually shift the gears and the results from what i felt to be right were just about what the computer would do. Sometimes, though, the computer would kind of lag shift. that never happened with me bumping it manually. I was able to push the car to 5000 rpm before i had to shift it to second. i did not try that from second to third. computer never did more than 4500 rpm before it shifted the car.
telling the difference of acceleration between the two methods wasn't very clear because the car computer didn't do the exact same thing every time. i didn't hit the gas the same every time either. i couldn't because the wheels spin so its kind of a different launch every time. it did shift quicker manually, though. there was no lag. i think it would have to be a timed situation on a straight road like a quarter mile and it would have to be a controlled situation.
and now i need gas