The noises you guys are hearing, are completely normal on start up. The OBC does a check of the drive train.
The delay on shut down is also normal.. Since the trans is partly a manual, the clutches need to retract upon shut down..
Did you ever see what happens when you try to start a car with a manual trans while it's in gear.. Same concept,, except,,, the trans in the RA is also part auto... So the startup with the clutches engaged would just make the car very difficult to start, rather than driving through your garage wall
and into the living room.
But it would be ONE HELL OF AN ENTRANCE!!