Hmm. I honestly can't imagine them being powdercoated from the factory whereas all of the other silver accents are painted. I would speculate that the windshield trim, side strakes, grill slats and door handles are all painted using the same paint. My side strakes were chipping when I bought the car and I have since replaced those. But since I am having the entire resprayed soon I figured i'd just get my painted to do my door handles.

Edit: Just looked up the door handle on a factory Chrysler parts website. Here is the info that was given.

HANDLE. Right & Left. Exterior Door. .

This genuine part fits your 2005 CHRYSLER CROSSFIRE.
Color: (-Y3.)Exterior: (PY3.) Satin Silver.