For iPhone users, there is potentially a simpler solution. Assuming you already have a list of Favorites, on your phone go to Settings> General> Bluetooth> and then tap on the Blue arrow next to your MINI that's paired to the phone. You will then get a menu of options regarding which groups of phone numbers you want synced (Phone Favorites, Phone Recents, Other Groups). To speed up the syncing of only your frequently used phone numbers, just turn on Favorites and Phone Recents, but don't include Other Groups. If you want to include a larger universe of contacts for syncing, you could create a new group in your address book of your more important contacts (e.g. name it MINI or Car) and include that group in the bluetooth sync menu.