***UPDATE*** (at least with mine)
mine has just come out of the dealer this afternoon from having the brake kit, arch lining & haldex update, i also asked them to look @ the vibration which THEY CLAIM ( i have not tested it myself ) to have stopped the vibration by correcting the pressures and my 2 front wheels are very slightly buckled, from normal road use i.e pot holes etc, but have balanced it out
they also say its a downside of having such big wheels & such low profile tyres as the front of the rim is supported by the spokes but the inside rim of the wheel has no support to keep it truly round.
he also said they would't have this problem in Germany as the roads are very well maintained there