Your someone "scraped" some data wrong. I see some cars listed as convertible under Trim and then under Sub-Model it's listed as fastback (item 363060983760 is one of them).

 

That's from the seller entering the data. Garbage in, garbage out.

 

That’s a nice scrape. Informative.

Using completed ebay listings is there is a moderately high percentage of transactions not followed through or listings pulled (but listed as sold). It will at least give an idea of what people are willing to offer. So much is involved, the who, the when, the where. Were I going to go the ebay route I’d use it as a lead cultivation tool rather than a final platform.

 

Nice work and its fine for generalizations but you can see some wild swings in prices. Remember, the auto auctions aren't binding like regular items.
I know at least one regular seller that never "sold" a thing, he used a few different ID's, Then when the auction is over he will send second chance offers, possibly to avoid bad feedback. I know because I have messed with him by bidding them up a few times might have changed his ways. oldmanclassicmustangsintexas Everything's a GT

 

Bring a Trailer has a good chart on the model page where they plot all of the auctions for that model. Below you can find all of the previous listings and clicking on the data plot will bring you to that auction. The downside is they don’t break it down by options or type (ie fastback vs coupe) until you get to the actual auction.

Mustang 1964.5-1966

Browse and bid online for the chance to own a Ford Mustang 1964.5-1966 at auction with Bring a Trailer, the home of the best vintage and classic cars online.

bringatrailer.com

 

I know personally of a 1966 Mustang Convertible that sold for 29900 at a dealership in Scottsdale AZ on April 1 2020. Appeared to be an older full restoration with original black std interior, manual top (new), C code engine auto trans (both rebuilt) power steering and 4 wheel power disc brakes. Car appears to have been rust and accident free. Repainted original red color. Drop dead gorgeous car that is spotless top and bottom. New owner gets compliments every time he drives it which is almost daily.

 

Region has a lot to do with price as well as supply and demand.

In a good economy many people buy without doing their due diligence and vastly overpay.

I see so many on FB looking to buy their first mustang and get super exited about lipstick on a pig and have no clue what they are in for.

Ive bought a few that I shouldnt have and passed on a few I shouldnt have.

 

Good info in an easy to read index, despite errors (garbage in garbage out). Now, add BAT sales.

 

That's pretty cool, Thanks for sharing.

 

It’s never been what a car is valued at when I buy them. It is always what it’s worth to me. With that being said, never gonna get past the prices some people put on their cars just because this or that car show says they are worth this much.

 

A guide at least. thanks for that