Seoul, South Korea – Hyundai has unveiled its Blue-City compressed natural gas (CNG) hybrid bus in Korea. It is the country’s first CNG hybrid bus and the first time a major automaker has independently developed both the system and body for such a vehicle.

The Blue-City, fully developed in Korea, uses a CNG engine and six-speed automatic transmission with a 60 kW electric motor and lithium-polymer battery. It has five fuel tanks, rather than seven as in existing CNG buses, but can still operate for 340 kilometres on a single charge, equivalent to a conventional CNG bus. Its fuel efficiency is about 30 to 40 per cent better than a normal CNG bus and its CO2 emissions are 24 per cent less, the company said.

Hyundai will operate 30 Blue-City test buses in selected metropolitan areas starting in July, with plans to mass-produce the vehicles in 2012.

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