I have also faced the same issues and currently I have taken up this issue eith Toyota Indus, there have been almost 3 weeks and yet indus is not willing to resolve the issue, rather cosidering it " Yaris mein normal hai", but I m not gonna leave this issue unattended, I hope that more and nore Yaris owners higlight these kinda issues, Having spent almost 3 million, we have bought a headache, at speeds like 120 windnoise is very very prominent. I m quite sure that Toyota Indus was aware of this issue, thats why they ooted to include acoustic windshield in 1.5 variets though ackustic windshielf has never been a customer requirement. I think they wanted to get rid of wind noise in this way. I would suggest U to send a detailed email to Toyota Indus and get it resolved, we will continue to get degarded quality standards if we dont highlight the problems. Its a fact that Pakistani market generally gets the older and problematic stuff but we all pay much higher prices as compared to international market, so why dont they deliver us the same quality standards as they do in case of developed countries. They dont manufacture the parts locally and the cost of import is carried by the customer. In the end its the customer who is at loss.
So I would say , highlight every small issue, that too in written.