According to Isaacson's biography, that's exactly where the idea came from, Hotwheels and all. Even if they don't manage it for the whole car, it does seem to

According to Isaacson's biography, that's exactly where the idea came from, Hotwheels and all. Even if they don't manage it for the whole car, it does seem to have worked out for the front and back castings, since other companies have started working on the same thing.