How many spiral grey 2004 corvettes were made out of how corvettes?

There's no official record of how many Corvettes were made in a specific color combination like "spiral grey" in 2004. Chevrolet doesn't track production numbers down to that level of color and paint effect specificity. Their official records usually only categorize by broad color families (e.g., grey, silver). A "spiral grey" effect would likely be a custom paint job, not a factory option.