For 1949, all three Ford Motor Company divisions debuted their first postwar designs. Sharing its body structure with the Mercury Eight, the redesigned Lincoln model line (code-named the EL-series) marked the first use of a V8 in a Lincoln since 1932. An all-new V12 intended for Lincoln was stillborn in development, leading the division to adapt a Ford flathead V8 (from the Ford F-8 conventional truck). As with the previous Lincoln Continental, the 1949 Lincoln dispensed with running boards completely, moving on to abandon pontoon styling entirely, with a straight fender line (and low hood line) from headlamp to taillamp. In a carryover from Zephyr-based Lincolns, the 1949 Lincolns retained rear-hinged passenger doors. As a flagship model of Lincoln, the Lincoln Cosmopolitan was styled with its own rear roofline.