Since I got my Dec 2016 MS90D I've noticed a steering wheel vibrations around 65-75mph, it seems to be related to the air (wind) making the front bumper vibrate, which gets transmitted to the steering wheel and even the whole car. 2 visits to SC and problem persists. They placed foam behind the bumper and they balanced the wheels. The running theory seems to point to a faulty front bumper design on refreshed MS. However it's been few months since the refreshed design came and the problem has been reported (there's a thread about it) but Tesla has not taken any actions to formally acknowledge or definitively address the issue. The purpose of this poll is to try and see how widespread this problem is. Thank you in advance.