When you are standing still and transmition is in "AUTO REVERSE", if you press "accelerate" it will switch to "AUTO 1/6", the car will go forward a bit, then stop and then start moving forward for real. Same happens when automatic goes from 1st to reverse. Video shows what I mean:
Same happens with Het/6V 5,0 engine actually, but it's barely noticable so nobody noticed the bug in version 6.X of the game.
I've noticed that bug on day one of public test of 7.0, but forgot to report it. Surprised noone else did since it's rather obvious. Hope this gets fixed for live version since it's very anoying.