JREA,
As best I can fiqure out from what I have collected and read over the years for 1941 - 1946 as related to your question is ;
1.1942 backout and 1945 grill trim peices,painted bumpers,grill and hub caps are Turret Gray. PPG DAR2847.
2. I do not find anything changing for the interior colors as noted in other forums.
