By Peter Laca BRATISLAVA, March 6 (Reuters) - Slovakia's economy remained red hot in the fourth quarter, pushing gross domestic product to record expansion in 2006 as investments in the auto industry helped boost export capacities, data showed on Tuesday. The Statistics Office of the ex-communist European Union member said fourth quarter GDP growth hit 9.6 percent, slightly less than the 9.8 percent posted in the third quarter, the fastest rate ever for the small central European nation. Slovakia has been showing one of the highest growth rates in the EU in the past two years, and 2006 GDP data showing 8.3 percent growth brought the country of 5.4 million people to the ranks of the world fastest rising economies, such as China and the Baltic states. Data also showed a shift towards a healthier structure of Slovak GDP growth and analysts said rising exports signalled the country's fast growth did not pose a major threat to the inflation outlook and the country's goal to adopt the euro in 2009. "The main message is that exports and foreign demand are becoming the key factors behind economic growth," said Lucia Steklacova, senior economist at ING Bank in Bratislava. "This is in line with expectations that net exports will be the main driver of growth this year." Fast economic growth bodes well for leftist Prime Minister Robert Fico, who beat a centre-right government in June 2006 elections, as it will boost state income and help finance part of his agenda of bigger spending on the poor. Slovakia's economic growth is expected to accelerate further this year -- the central bank predicts GDP growth of 8.6 percent in 2007 -- after two new car factories of French PSA Peugeot and South Korean Kia Motors boost production. NO OVERHEATING RISK Despite the rising role of exports in economic growth, analysts said household consumption growth of more than 6 percent still showed some inflation risks in the economy. "Monetary policy easing is coming closer, but it is not a question for this month," said Miroslav Plojhar, the chief economist at Citibank Czech Republic. "The first interest rate cut in Slovakia should come in four or five months, so the differential against the euro zone could be brought to zero in one year or a year and a half," he said. The Slovak central bank's key two-week repo rate stands at 4.75 percent. The Statistics Office said economy would accelerate further in future, adding that growth was healthy and sustainable. "We think there is no danger of economic overheating," Pavol Balaz, head of the Statistics Office's National Accounts Department, told journalists. Apart from the rising car sector, Balaz said the economy will get a further boost from the electronics industry, which features a factory of South Korea's Samsung Electronics . (Additional reporting by Martin Dokoupil and Martin Santa)