Top Japanese carmaker Toyotasaid on today it would introduce a new hybrid engine system which will improve fuel efficiency by about 15 per cent.
The system, called THS-M (Toyota Hybrid System-Mild), can be used in most types of existing cars, it said.
The engine will improve fuel efficiency by automatically shutting down the engine to prevent idling.
Emission of toxic gases will be half of the Japanese government's standard for last year, Toyota said.
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