Several times over the years, General Motors (GM -0.91%) has tried to restore its faded luxury brand, Cadillac, to glory -- but it never quite worked out, as all of those efforts seemed halfhearted.

No more. GM's CEO is serious about making Cadillac the global luxury king -- and he's investing the (big) money needed to make that happen. In this video, Fool.com contributor John Rosevear looks at GM's plan to take on the the big German luxury names -- and at why it's finally time to start taking Cadillac seriously.