1970 PLYMOUTH GTX (Ivy Green) GL Muscle Series 12 Greenlight Collectibles 1:64 Scale 2015 Die-Cast Vehicle & Trading Card. Limited Edition - Specially designed for the adult collector! 1:64 Scale - Vehicle measures approximately 3 inches long. GL Muscle is a collection of the greatest American performance machines both classic and modern. Each car is grouped with a second set of tires and wheels that can be switched out. Each car also comes along with a serialized Trading Card, the first of GreenLights lines to include this. GreenLight is dedicated to visually maintaining the distinct characteristics and details that have made these cars so great. Ages 8 and up. From Greenlight Collectibles.