how much is it worth 4dr spt sedan in very good original condition

It sounds like a clean, original car. As a classic auto dealer, I've seen the market on 4 door cars come up a little in the last few years and is actually getting pretty decent. If the car doesn't have any significant issues, is in strong original condition with a strong curb appeal... the market dictates it'll bring between $4000 and $6500. Hope that helps.

worth 3,150-7,665