1956 Packard sedan, woman behind wheel, two women standing at front of car

Packard Co. file photograph of a 1956 Packard sedan, left side view, woman behind wheel, two women standing at front of car, parked in driveway. Inscribed on photo back: "This new Packard 400 model offers elegant and stately styling and an improved torsion bar suspension system, the ride and comfort advance pioneered on American cars by Packard in 1955 models, for 1956 new Packards offer two major engineering advances that will be auto industry firsts, an electrically activated push button automatic transmission, and a non-slip differential, representing the first basic change in differential design in more than 30 years, the non-slip differential eliminates driving nuisances such as getting stuck in snow, on ice, in mud, and other adverse driving situations, most important, it contributes to the ultimate to date in safe, secure road ability when a car goes around corners or sharp curves, the non-slip differential senses which rear wheel needs and can utilize tractive power, and makes a transmission of power accordingly."