theres like 20 different types of black for nissan. And each code has atleast two different shades, depending on the plant and the year. I mixed the AH3 cherry red pearl for my z when i had it repainted. I picked alternate 4, out of like 8, since it was the brightest red of them. Some were more burgandy, while others were more reddish. Just about every nissan paint code is this way, which makes them hard to match exactly without our spectrophotometer(takes a picture of the paint, and scans a database of colors for the best match).