Additional options can be used to show some of the options the car as, but show it as an icon. This options are not available in the search. Ex: Sound Kit (radio, TV, 10 Speakers, Blue tooth); Pack Comfort (Leather seats, cruise control, GPS) - Pack Executive, etc. To create new: OPTIONS-- ADDITIONAL EXTRAS. Select the name for the "group". For example, many cars use the "packs" Executive, Titanium, Comfort, Etc, and each pack as some options, like leather seats, 17", cruise control, etc..