I have a Subaru in the stash that I kinda started, but I'm not really a car guy. Anyway ... Model Master has "blue metalic chip" in their acrylic line. Not sure about enamel. That's pretty much the color it calls. I bought a bottle planning on doing a multiple layer/ sand/ layer/ sand technique.
I know that my local Hobby Lobby carries it in stock.....
HTHs...