I know we are a Camaro Forum but this car is Super Rare. Because of that, and the model, I have included it.
Here is the short list of what makes this car rare:
The only 1967 Shelby GT convertible built.
The only big block GT convertible built by Shelby American, Inc.
The only dual-quad carbureted Ford Mustang convertible and/or Shelby GT convertible built.
The first big block Shelby GT convertible built.
The first G.T. 500 to be factory-equipped with the Closed Crankcase Emissions System (smog). Though ordered with it, the first two big block cars did not receive it.
The first G.T. 500 to be factory-equipped with both the Closed Crankcase Emissions System (smog) and air conditioning. Only 23 G.T. 500's were so-equipped in '67.
The first Shelby to receive '68 styled bodywork. (ref: Jim Frank interview)
One of two 1967 model year vehicles to be classified as "1968 Prototypes" by Shelby American. (ref: Ionia Move Notes - Jobs Yet to be Completed in CA)
The third G.T. 500 to be built. The first was 0100, a Fastback; second was 0131, a Coupe and third was 0139, the convertible.
Valued at $4,249.76, the convertible was the most expensive G.T. 500 in Shelby American's company car inventory for FY-1967 (ref: Vehicle Fixed Asset Ledger 07/31/1967).
Initially assigned to Carroll Shelby as his personal driver. (ref: CSF Vehicle Info)
One of, if not the most photographed and publicized Shelby GT cars ever built. This was the convertible seen on the cover of the press kits, dealer literature and print ads introducing the 1968 Shelby model line-up.
Owners Brian and Samantha Styles.
T.