Based on a shortened version of the contemporary F-350’s dual-rear-wheel chassis, the 1994 Ford Power Stroke concept served as a high-profile pedestal upon which the company displayed its eponymous new turbodiesel engine. The concept’s direct-injected 7.3-liter V8 soon made its way into production-spec F-250 and F-350 pickups, and it still enjoys a sterling reputation for longevity and capability. The Power Stroke concept also previewed the styling of the 1997 Ford F-150, all curves and bubbles and ovoid accents.