Auris loud on motorway - anyone sound proofed theres?

[antti86]

I have -17 Auris hybrid. I got the doors silenced with dynamat and Speakers upgraded. I notice quite good improvement on the noise level. It's still quite noisy car ( compared to my previous mercedes C -08) on the highway but much more enjoyable. I might want to do more soundproofing later on, cause I want to add subwoofer on the trunk.

[CurranShelter]

Not sure how much the tyres are a factor, but personally I avoid cheapo tyres from little-known brands and instead look online for tyre test results (from the likes of AutoExpress & Auto Bild) as the difference between the best & worst performing tyres is really quite significant, whether it's in terms of safety, economy or cabin noise (all of which are usually assessed).