GM Daewoo Auto & Technology, the South Korean unit of General Motors (GM), has launched the 2009 models of the new "Gentra'" sedan and "Gentra X'" hatchback, which the automaker says are the most fuel-efficient vehicles in their segment.

According to GM Daewoo Auto & Technology, the additions to the Gentra family  will feature a new 1.6-liter engine, whose fuel efficiency of 13.9km per litre with an automatic transmission - 16km with a manual transmission - tops its predecessor and competitors. (View the Gentra X picture gallery)

"With our new ECO-TEC engine along with the economical 1.2 DOHC engine introduced with the launch of the Gentra X last year, small car buyers have a greater choice than ever before," said GM Daewoo vice president of vehicle sales, service & marketing Rick LaBelle.

The 2009 Gentra sedan (manual transmission) will be priced between 9.07 million Korean won (roughly $9,600) to 11.12 million won. The 2009 Gentra X hatchback is likely to cost between 8.57 million won and 10.96 million won.

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