That's a junkyard hood off a green car. It's actually a clear logo with green paint underneath. I could have removed it to save a few grams and to remove that small lump from the airstream, but people seem to like the way it looks.
Consider it from this angle: That particular aerodynamic defect pretties up the front of the car, and distracts people from my aerodynamically sound asymmetrical grille block.
The can of Bondo says it has a pot life of four minutes. I find I have about two minutes tops before the stuff starts to "tear" instead of going on smoothly. Also, it really doesn't produce a surface that's fit to paint. *shrug*
These results will be sufficient:
I'll throw some weatherstripping in there, call it done, and get to work on more important mods.