THE ENGINE BAY IS UNPAINTED!

I noticed it almost right away but I haven't seen anyone else mention it. I understand that it was probably to save money but almost everything else is painted completely. Underneath door panels, under the center console, under the back seats, even under the dashboard is fully painted so why leave the engine bay unpainted?

The trunk under the carpet where the spare tire sits isn't fully painted either, but I've seen the same section unpainted in other cars.