2011 Chevrolet Cruze Gets Acoustic Treatment

While the hatchback version is making its way to the 2010 Paris Auto Show, the 2011 Chevrolet Cruze comes as a more quieter ride after receiving extensive acoustic improvements. To meet their objectives for the U.S. market, Chevrolet engineers developed more than 30 acoustic treatments that mute unwanted engine, road, and wind noise.

"Reducing noise is fairly easy if you have the flexibility to add cost or increase weight,"
said Cruze Performance Manager, Brandon Vivian. "For Cruze, every change had to meet two criteria: It could not increase the Cruze starting price of $16,995, and it could not add weight that would jeopardize Cruze's outstanding fuel economy."

Here are 10 of the most significant features, as released by Chevrolet:

  • 500 inches of structural adhesive reduce structural noise and increase body strength
  • Seven pints of liquid sound deadener on the cabin floor mute road and friction noise, and weigh 30 percent less than conventional sound-deadening materials
  • A five-millimeter, acoustic-laminated windshield quiets wind noise
  • Triple seals for all four doors block wind and road noise
  • 30 "Snickers bars" of expandable, sound-blocking baffles in the roofline and window frames quiet noise transmitted around the door openings
  • The 26- x 50-inch hood liner features acoustic materials that mute engine noise  
  • Two sound-absorbing mats on both sides of the front-of-dash panel isolate engine noise, and save three kilograms of weight by using lightweight materials
  • A 15-millimeter-thick mat in the spare-tire well absorbs road noise
  • Four wheel-well liners, backed with textile material, block tire noise
  • A five-layer headliner muffles cabin noise

"Every noise masks other, quieter sounds," Vivian said. "For example, reducing a wind whistle on the highway can uncover a tire rumble on coarse roads. With Cruze, we recently added a dampener to the fuel line, because the interior is so quiet that we could hear fuel flowing through the line."
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