https://www.cnbc.com/2017/10/30/ubs-slashes-tesla-profit-estimates-predicting-more-model-3-problems.html >Tesla's disappointing Model 3 production ramp is a troubling sign, according to one Wall Street firm. >UBS reaffirmed its sell rating on the electric car maker's shares, predicting Tesla will continue to have issues producing its Model 3 vehicles.