I think that would be a good candidate for a Camaro spoiler. They're cheap ($25), easy to modify, clean looking, and flexible. They are flat on top, so they can be formed to fit just about any car.
If it's too big, or you can't stomach putting an American part on your Italian hottie, you can stay with the Axis powers and go German with an A1 Rabbit front lip. They are made in shallow and deep lengths. I don't have a source, or any pics of the shallow version, but here's the more common deep spoiler.

