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The 2008 Hyundai Elantra is fitted with a 2.0 liter DOHC four cylinder engine. Performance specs differ slightly between the Ultra Low Emissions Vehicle (ULEV) and Partial Zero Emissions Vehicle (PZEV) versions. The ULEV engine is rated at 138 horsepower (HP) and 136 foot pounds of torque, while the PZEV engine is rated at 132 HP and 133 foot pounds of torque. The Elantra is equipped with either a five-speed manual or a four-speed automatic transmission.