Quiet on the inside; noisy under the hood - 2011 Hyundai Sonata GLS Long-Term Road Test
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2011 Hyundai Sonata Long-Term Road Test

2011 Hyundai Sonata GLS: Quiet on the inside; noisy under the hood

July 30, 2010

One of the reasons our 2011 Hyundai Sonata GLS makes 198-hp and is currently earning over 25 mpg with just a 2.4-liter 4-cylider engine is because it uses high-pressure gasoline direct-injection (GDi in Hyundai parlance). While it is just teeny bit louder at idle on the inside than either the comparable Honda Accord or Mazda6 4-cylinder models (here's the comparison), it makes quite a racket on the outside. Have a listen for yourself.

Chris Walton, Chief Road Test Editor @ 2992 miles


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