Noticed something strange when creating a new car:
Completion Date lowered in between?
Regards
I just tried duplicating it, and it works fine for me. Are you able to duplicate it? Are you able to share the save/sliders you're using.
Works equally with Reliability Testing and Dependability slider.
Added a savegame - since i'm using MRW Mod i added AI_Start.xml and Logos.zip aswell so the file is about 15mb in size.
Can be reproduced with every kind of car.
I figured out what the issue was, and completely rewrote the development pace code.