NABEREZHNYE CHELNY, May 11 (RIA Novosti) - Russian Industry and Energy Minister Viktor Khristenko has proposed fixing prohibitive import duties on foreign cars beginning from five instead of the present seven years of age. He said this when visiting the AvtoVAZ factory (Russia's leading carmaker). The Russian automobile market is promising and expanding, he said. "Recalling the last year estimates, it is 17 billion dollars as regards only cars. This year it is 20 billion dollars. In 2010 the Russian car market will increase to 31 billion dollars," Khristenko said. His working visit to the KAMAZ factory is pegged to...