Toyota is planning to add solar-powered air conditioning to high-end models of its Prius hybrid cars, a report says.
The new feature would be part of the third-generation Prius, which is due to be launched next year, according to the Nikkei business daily.
It reported that the models would have Kyocera solar panels, which could provide between two and five kilowatts of electricity.
Toyota has a policy of not commenting on future product plans.
Sales of the Prius have been increasing as rising oil prices have made the better fuel consumption of its combined petrol engine and electric motor more attractive.
More than one million of the models have already been sold and Toyota aims to sell one million a year sometime after 2010.
BBC NEWS | Business | Prius 'to be part solar-powered'
Would be great if they could make these cars cheaper to buy than current cars too.