Frozen Dark Blue vs San Marino Blue
Here we are comparing two of the standard range colors that were available on the F80 M3 (and M4) CS. Both blue but with a different paint finish.
When seeing them side by side in these images, Frozen Dark Blue could very much be called Frozen San Marino Blue as it looks pretty similar but just with a satin finish. It has to be noted that these pictures are shot in a dark environment and when seeing them both under direct sunlight the differences will come out much more. For example Frozen Dark Blue really is a bit darker (what's in a name) than San Marino and also not as vibrant, partly due to it not being glossy.