Toyota Motor Corp., Japan's biggest automaker, said it booked 180,000 domestic orders for the new Prius gasoline-electric hybrid within a month of the car's debut.

The company had set a sales target of 10,000 units a month in Japan, it said in a statement Friday. The tally includes 80,000 orders placed before the car debuted May 18.

The third-generation Prius was Japan's best-selling car last month, surpassing Honda Motor Co.'s Insight. Hybrid sales have surged on the introduction of new models and government purchase incentives aimed at stemming a 19 percent plunge in domestic vehicle sales last month.