This is not a magic bullet to creating a silent car interior, but will put you pretty far along the path to a quieter ride

So far I can hear a difference when driving down the road..less rattling, more of a quiet ride inside.

silent riding now! added some foam on top in the hatch area...not sure if i needed it, but better to just do it once.

I figure that will help quiet my ride.

Makes the squeak box toaster a much more comfortable ride particularly on the highway.

The ride is noticeably quieter, but slightly less so than I initially expected

really quiets our ride down.

The only reason I gave it 4 stars out of 5 is that although good - I wouldn't want to set expectations to high.