with the conventional). The shorter-hood Model 341 was heavier-duty, intended for vocational applications. In 1958, following a decline in truck sales, Ida Peterman (the owner of the company real estate) announced to company owners her plans to redevelop the factory site as a shopping center. Rather than take on the large investment of developing a new factory, the investment group chose to sell Peterbilt Motors Company in June 1958 to Pacific Car and Foundry, a Seattle-based company that specialized in production of railroad freight cars; the company had acquired Kenworth in 1944. The new owners of Peterbilt began the relocation of the company, keeping it in the San Francisco Bay Area. In 1959, construction commenced on a 176,000 square-foot facility in Newark, California. For 1959, the 281/351 COE was replaced by the 282/352 COE. While externally similar (though upgrading to quad headlamps), in a major change, the new design introduced a tilting cab to allow better access to the engine. 1960s In August 1960, the first Peterbilt trucks were assembled by the Newark, California, factory; production increased to 800 vehicles for 1960. Coinciding with the introduction of the new factory, Peterbilt debuted a redesigned "Unilite" cab for its conventional trucks, distinguished by larger windows and a redesigned interior (including an all-new instrument panel). In an organizational change, Pacific Car changed its ownership status of Peterbilt, converting it from a wholly-owned subsidiary to a division within the company, making it the sister company of marketplace rival Kenworth (a division since 1946). In 1965, Peterbilt introduced the Model 358, largely replacing the 351 (which remained in production). The first Peterbilt conventional with a tilting hood, the 288/358 replaced a fixed radiator (and grille shutters) with a grille surround attached to the aluminum hood (a fiberglass hood was added as an option in 1972). Serving partially as a grab handle, the Peterbilt "bird" hood ornament made its debut (a feature remaining in current production nearly unchanged). In 1966, the company to expand its model line beyond highway tractors, reintroducing heavy-duty trucks as part of its model line. Above the Model 341, the Model 383 was a 6x6 truck primarily for off-road construction use. In 1967, Peterbilt introduced the Model 359 highway tractor. Similar in design to the 358, the 289/359 also used a tilting hood, but was fitted with a larger grille (to accommodate larger diesel engines). In 1969, Peterbilt expanded its production