Just done a 200 mile motorway round trip to see my folks and the noise of my car at certain speeds was really getting on my tits. It's a loud drone like a resonance that sounds like it's coming from the air intake/air box. This occurs at about 3000rpm which corresponds to between 70-80mph in 5th. This is nothing new (had car 18 mnths) but I hardly ever do motorway journeys in the 'rrari so not normally an issue. Noise disappears by 3500 rpm. Do all gt4's (or all 308s for that matter) do this? Due to travel to Newcastle in May so would be interested to know if there is any way to reduce the drone noise.