[G30M]

So I have a M550i with Bowers and Wilkins but where i live they build roads with some sheet called "chip seal". I can only enjoy the B&W in the garage or on perfect tarmac. Unfortunately 90% of the roads are not these and all i can hear is tire roar.

So much that I bought a new daily, a Kia EV9 - the sound system is much much inferior but at least i can hear music and not road noise.

I once stripped a Subaru wagon and insulated the entire cabin but it didn't make any dent to tire roar.

Any ideas? Tires are 3 year old Continental Sport Contact 5 255 40 19 all round.

Edit - i forgot to add, according to my dBmeter, this is 2 dB lower than the stock RFT pirelli p zero 245/35/20 275/30/20

I don't expect anything but I was very disappointed at the road noise. I can't change the government's roading policy.

I'm thinking going onto some touring tires maybe?