Nissan's in trouble. More trouble, maybe, than former (and frog-marched) CEO Carlos Ghosn.

Reuters reports a blanching 70 percent drop in operating profit last quarter due to plunging sales and unfavorable foreign exchange rates

Net income fell by more than half to 59 billion yen ($546.8 million) in the July-September period. According to the Reuters piece – and a public announcement by Nissan – revenue decreased 6.6 percent to 2.63 trillion yen ($24.4 billion) over the past three months and global retail volume declined 7.5 percent to 1.27 million vehicles.

Part of the problem is heavy discounting, which gives any brand that does it the aura of a K-Mart Blue Light Special. Nissan also has several very old models in its new vehicle lineup, including the 370Z sports car and the Frontier pickup. The full-size Titan (and Titan XD) also haven't been doing well, despite a market that loves big trucks.