Navistar is attemping a turnaround on two fronts—its financial woes and its engines—and a drive of its revised heavy-duty diesel offerings strongly suggests pleasing progress. The driving was during a show-and-tell for trade-press writers where executives and engineers described more efficient development and manufacturing operations at their Melrose Park, 111., engine facility. I came away impressed by a new confidence among executives that has replaced the defiance and competitor-bashing we saw and heard from previous execs. And I liked the performance of their engines.
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