Ford says its November U.S. light vehicle sales tumbled 31% amid a continued slump in consumer spending and tight credit markets. Toyota's sales fell 34% despite its extension of zero-percent financing on a dozen vehicles. And Honda showed a 32% drop.

The reports come as U.S.-based companies prepare to state their second case for a federal bailout.

Ford says Lincoln and Mercury light truck sales were off 29% compared with November of last year, while the three brands' car sales were down 32%.

Toyota's truck sales plummeted 36%, while demand for passenger cars fell 32%.