You may not want to actually rectify this yourself but try and locate where the noise is coming from by getting down and listening whilst someone else id driving, pound to a penny its from the rear wheelarch/boot floor area, i expect like many mass produced cars there is no proper soundproofing over the rear wheelarches and the tyre noise is being amplified straight into the passenger cell, hatchbacks and estates more prone to this than saloons for obvious reasons.

Some relatively cheaply bought self adhesive soundproofing panels stuck to the painted bare metal and covered back up with the plastic trims will make a tremendous difference.

We disposed of Michelin Pilote's early due partly to dreadful road noise, replacement Vredestein Sportracs by no means silent were a big improvement on our C2 VTS, as was the aforesaid soundproofing.

Our recently purchased Outlander is on Michelins, thats noisy too but i haven't yet investigated a cure, grip is superb.

My own MB is now running on Federal Formoza FD2 tyres specifically chosen for silent running, yes they are quiet and roadholding is good but it must be said wet grip is not quite in the same league as the deafening Toyo T1R's that they replaced which stuck like the proverbial to a blanket.

If you want Michelin quality but quiet running then Nokian Z score highly in noise reviews as well as for grip.

Have you been pondering that since 2013, Keith?