Table: Harbour Index

Thanks to its decimal-point accuracy, the annual Harbour Report is considered the North American auto industry's bible of factory efficiency. Some highlights:

MOST PRODUCTIVE AUTO MAKERS

Nissan (NSANY ), at 27.63 hours per vehicle, followed by Honda (HMC ) (29.11 hours) and Toyota (TM ) (31.06 hours).

BEST OF THE BIG THREE

Ford Motor (F ), at 39.94 hours per vehicle. That's 8% worse than its 1997 productivity, however.

MOST IMPROVED

General Motors (GM ), at 40.52 hours per vehicle, 16% better over three years.

BIGGEST DISADVANTAGE

DaimlerChrysler (DCX ) averages 17 hours per vehicle more than Nissan. If DC could match Nissan's efficiency levels, it would need 26,400 fewer workers to achieve its current output.

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