Arrival

Strip and Metal Fabrication

Mechanical

Body and Paint

Trim and Detail

Finish

The 1966 Mustang debuted with moderate trim changes including a new grille, side ornamentation, wheel covers and gas cap. Ford’s new C-4 “cruise-o-matic” three-speed auto transmission became available for the 225 hp V8. The 289 “HiPo” K-code engine was also offered with a c4 transmission, but it had stronger internals and can be identified by the outer casing of the servo which is marked with a ‘C’. The long duration solid-lifter camshaft that allowed the high revving 289 to make the horsepower it was known for, was not friendly for a low stall speed automatic torque converter. The “HiPo” could be spotted very easily by the 1-inch-thick (25 mm) vibration damper, (as compared to 1/2 inch on the 225-hp version) and the absence of a vacuum advance unit on the dual point distributor. With the valve covers off, there is a large letter “K” stamped between the valve springs, along with screw in studs (vs. a pressed in stud for other 289s) for the adjustable rocker arms. A large number of new paint and interior color options, an AM/eight-track sound system, and one of the first AM/FM mono automobile radios were also offered. It also removed the Falcon instrument cluster; the previously optional features, including the round gauges and padded sun visors, became standard equipment. The Mustang would be the best-selling convertible in 1966, with 72,119 sold, beating the number two Impala by almost 2:1.

The 1965 and 1966 Mustangs are differentiated by variations in the exterior, despite similar design. These variations include the emblem on the quarter-panels behind the doors. From August 1964 production, the emblem was a single vertical piece of chrome, while for 1966 models the emblem was smaller in height and had three horizontal bars extending from the design, resembling an “E”. The front intake grilles and ornaments were also different. The 1965 front grille used a “honeycomb” pattern, while the 1966 version was a “slotted” style. While both model years used the “Horse and Corral” emblem on the grille, the 1965 had four bars extending from each side of the corral, while on the 1966, these bars were removed. The 1966 model year saw introduction of ‘High Country Special’ limited edition, 333 of them were sold in Colorado, Wyoming, and Nebraska.

When Ford wanted to introduce the Mustang in Germany, they discovered that Krupp company had already registered the name for a truck. The German company offered to sell the rights for US$10,000. Ford refused and removed Mustang badges from exported units, instead naming the cars as T-5 (a pre-production Mustang project name) for the German market until 1979 when Krupp copyrights expired.

https://en.wikipedia.org/wiki/Ford_Mustang_(first_generation)