the first 200 or so characters in your description are key, as they index stronger than the rest. a secret here is to put the most important stuff up top - like your link. don't use www... use http://estabrookford.com to create a clickable active link. talk about models or segments up front - fusion, F-150, Lariat, svt, cobra, etc. or Heavy Duty Pickup, Crew Cab. include a list of local major (ish) markets you serve to ad at the bottom.
as for keywords, what I wrote above applies, but include new car for sale, used car for sale, Ford, Lincoln, truck for sale, pickup for sale, ... hope that gets you started. here is what I have done for another dealer...