I'm guessing any Studebaker "nose piece" would have wings which swept back more.
The horizontal element in an Opel themed part would be the familiar "lightening bolt" motif.
An intake from a '50's era Mercury comes to mind.
Also, the taper at the ends of the wings makes me guess it's older than we think.
It'd be handy to keep around if ever you blast your car with a shotgun at close range. Glue that piece over the hole-tastefully. Kira