Ford Mustang

All of these were VIN-identified as 1965 models, but several changes were made at the traditional opening of the new model year (beginning August 1964), including the addition of back-up lights on some models, the introduction of alternators to replace generators, and an upgrade of the V8 engine from 260 cu in to 289 cu in. In the case of at least some six-cylinder Mustangs fitted with the 101 hp 170 cu in Falcon engine, the rush into production included some unusual quirks, such as a horn ring bearing the 'Ford Falcon' logo beneath a trim ring emblazoned with 'Ford Mustang.' These characteristics made enough difference to warrant designation of the 121,538 earlier ones as "1964½" model-year Mustangs, a distinction that has endured with purists.