6B4 or 6B5. I've seen both. For the longest time I thought I had 6B5 and have been having everything painted for my car that color. But when I looked on the inside of the trunk lid it said 6B4! The 2 colors as far as I can tell are the same. I think from 97-01 it was called 6B4 and 02 and newer it has been changed to 6B5. I even looked at a Porsche color chart and they don't even show the 6B4 any more so it must be 6B5 for all Seal Grey Metallic colors.
