We have a 2009 Ford Fiesta Titanium auto on 15 x 6 alloy wheels. with 195/50 Hancook tyres. This wretched car, which could be so nice, gives no pleasure to driver or passenger because of the incessant tyre roar, which varies from intrusive to deafening, such that conversation is impossible. I have spent £200 on a noisekiller kit that has proved to be totally ineffective. Is there anything else I can do apart from scrapping the tyres and trying different ones, and if I do this, what improvement can I expect? Ford's disinterest in this matter is total. I cannot understand how a reputable manufacturer can produce an otherwise good car with such a glaring defect. After all, noise is pollution.