[nmayes]

Sean,
Having been in the autoparts business, you can go to any NAPA, CARQUEST autoparts store and have them mix you what ever you need, they can even put it in a spray can. Wimbelton white is a common Ford color and can be mixed to match the paint on your car. As far as the titanium color goes, they should have paint chips from a BMW color chart to help you match your paint. If all else fails any good body shop would be glad to help you out, most of them mix their own paint, and will get a good close match.

Neil