Ruby Black Metallic (S23/X03) is a metallic BMW Individual paint, seen on the F80 M3. 3 F80 M3s were painted in it. Counted in 2018 from every car's build sheet.
Where they went
Ruby Black Metallic: cars by market and model, Bimmerpost build-sheet tally
Market
Pre-LCI
LCI
CS
Total
US & Canada
1
–
–
1
Europe/RoW
–
1
–
1
RHD markets
–
1
–
1
All
1
2
0
3
BMW changed the model in mid-2015. In the US, pre-LCI cars are mostly 2015 models. Bimmerpost build-sheet tally, 2018.Source