Graystone

3 factory colors named Graystone, from 2 makes

Color	Make	Code	Years	Models	Also sold as
GM Graystone 016	GM	016	2005–2010		Greystone Met
GM Graystone 16, GIW	GM	16, GIW	2011–2013		Greystone Met
Pontiac Graystone 15	Pontiac	15	1975	Firebird