Don't know specifically about the Milano dark metallic grey trim as on our 89 (still unblemished), but for the 164S, people use SEM Bumper Paint in spray cans. Of the three similar colors, SEM 39273, 39193, and 39033, it was decided that 39273 was correct for the dark metallic grey 91S skirts anyway.
The Milano color might be similar. Will check our Milano tomorrow. Locate your nearest SEM seller.
1989 Milano, Shankle Sport
1991 164S, stock
1994 164LS (~Q)
1972 Morgan 27
previously owned since 1964:
62 Morris MiniMinor 850, 67 Austin 1275 Cooper S (Downton 3/4 race), 64 Giulia Sprint GT (1st red one made), 72 Fiat 128 Sedan, 75 Alfetta Sedan, 78 Alfetta Sedan, 78 GTV, 81 GTV6, 86 GTV6
Last edited by Del; 03-25-2019 at 10:45 PM.