wwe had an audi tt at work that was silver. Just too much silver. I think your xf might look good by painting the door handles, mirrors and roof black, Id then go with graphite color rims and slasher strippes in either black with small graphite stripes or vice versa. You could paint your windshild surround too if need be.

Also some custom kick panel lettering that would say crossfire in blk/graphite would pull all the colors together, one thing to keep in mind when doing a project is the viewers eye flow while looking at your car. Arethe colors and trim all balanced? Is it to busy or lacking a touch of color here and there?

If you look at Nina in my sig pic, you can see that Ive got chrome trim, graphite rims and stock silvedr windshield surrounf/handles. Too many colors and to busy so Im painting the surround and handles this summer either red or graphite.

Good luck and enjoy

Pooly