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Hyundai has developed a new 1.8L gasoline engine replacing the previous engine for new compact/mid-size vehicles. This new engine will be installed on the debut of the new 2011 Hyundai Elantra in the North American market. The new engine has achieved high performance and improved fuel consumption by applying dual continuously variable valve timing and a two step variable induction system, which has enabled both low and mid speed torque as well as high speed power. In addition, reduced noise levels were realized by optimizing lower structure components and induction parts while also focusing on maintaining lighter weight. The engine meets U.S. SULEV and EURO 5 emission regulations. This paper presents an overview of the new 1.8L I4 gasoline engine (Nu Engine) as well as the features of each technology which embodies a well tuned engine with respect to high engine performance, lowered fuel consumption, reduced emissions and reduced NVH.