Just fill the search form only once. Select the set of search criteria and give it a name. Use "Save Search Preference" button to store permanently this set of search criteria so when you come next time, you get the pre defined list of searches. Have a freedom from filling search forms every time for the same criteria.
Take an advantage of featured cars listings and get 40% of more views of car buyers. Pay little on top of membership and advertise your car citywide, regionwide or countrywide. Your car would be displayed above the general listing.
Sponsored cars are viewed by most of the car buyers. You can tag your car citywide, regionwide or countrywide and attract the audience. Your car would be displayed above the featured listing.