New 7th-generation Hyundai Sonata updates design, tweaks powertrain
Green Car Congress
APRIL 16, 2014
Hyundai introduced its seventh-generation 2015 Sonata mid-size sedan at the New York International Auto Show. Further performance gains were made possible by incorporating Dual Continuously Variable Valve Timing (DCVVT) which improves engine breathing on the intake and exhaust sides for better fuel economy and lower emissions.
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