This 1966 Ford Mustang fastback was purchased in 1965 by the owner’s father, Air Force Brigadier General Horace D. Aynesworth, and then driven from Dearborn to the Pentagon to be given to the owner as a Christmas gift. In 1997 it was relocated to Arizona, and shortly thereafter the owner rebuilt it as a track-capable street car. Highlighting the build is a Boss 302ci V8 topped by a 6-71 supercharger, two Holley four-barrel carburetors, and Edelbrock Performer cylinder heads, and it is linked to a Toploader four-speed manual transmission and a Traction-Lok differential with 3.70 gears. The body was modified with fiberglass flares, an R-style front end, a side-fill fuel tank with a Le Mans-style filler, and Corvette red paintwork, and the car rides on a modified suspension with Koni shocks, upgraded springs, and Alston subframe connectors along with SSBC four-wheel disc brakes and 17″ American Racing wheels. Scheel bucket seats, aluminum door panels, and a Hurst shifter were fitted inside along with a roll bar and polycarbonate windows. This modified Mustang was listed on BaT in May 2025 and is now offered again on dealer consignment with a clean Arizona title in the name of the owner’s living trust.

The car left the factory finished in Ivy Green. Around 2000 it was disassembled, fitted with a fiberglass hood and fender flares along with an R-style front valance, and was then repainted 1980 Corvette Red according to the owner. A body-color rear bumper, a honeycomb grille, and Shelby-style polycarbonate rear quarter windows were added. MR-4000 Lexan was used for the door and back glass.

The hood and trunk are secured by pins, and a Le Mans-style fuel filler was also added. The owner states that curb weight has been reduced to approximately 2,500 pounds.

The suspension has been modified with Koni shocks at all four corners as well as a front strut tower brace, Alston subframe connectors, lowered upper front control arms, 620lb-in front coil springs, heavy-duty rear leaf springs with lowering blocks, and a 1” front sway bar with polyurethane bushings.

Braking is handled by four-wheel discs with SSBC Force 10 calipers and slotted rotors all around. American Racing 17” wheels are mounted with 215/45 front and 275/40 rear General G-Max tires.

The 302ci V8 features Edelbrock Performer cylinder heads, a 6-71 supercharger, and dual Holley four-barrel carburetors fed by an Edelbrock mechanical fuel pump and a Holley electric fuel pump. An MSD Blaster SS ignition coil and a Mallory Unilite distributor have also been installed along with tri-Y exhaust headers, a nine-pound aluminum flywheel, a Hays clutch assembly, and a Ron Davis aluminum radiator cooled by dual SPAL electric fans.

The rear seats have been removed, and the cabin has been outfitted with a roll bar and Scheel bucket seats trimmed in black corduroy. Dynamat insulation has been applied under the carpets, and additional appointments include aluminum dashboard fascia and door panels, Simpson lap harnesses, billet door handles, a fire extinguisher, and a Hurst shifter topped by a cueball knob. Wear on the driver’s seat bolster can be viewed in the gallery.

The steering wheel sits ahead of column-mounted boost and air/fuel ratio gauges. An AutoMeter 8k-rpm tachometer and 120-mph speedometer are joined by a mixed set of auxiliary gauges. The five-digit odometer shows 2k miles, and total mileage is unknown.

The battery has been relocated to the trunk, and a side-fill fuel tank has been installed.

Power is sent to the rear wheels through a Toploader four-speed manual transmission, a Traction-Lok differential, and 3.70:1 gearing. The custom exhaust system has a cross-over pipe and Flowmaster mufflers.

The warranty tag number – 6F09C193539 – is consistent with a 1966 Mustang fastback built at the Dearborn, Michigan, assembly plant with a 289ci V8 and a two-barrel carburetor. The fender stamping has been painted over and is partially illegible; it is shown in the gallery.