Oil prices have already taken a dramatic fall that's saved consumers big time at the pump. Last week, crude tumbled below $42 a barrel, down from $100 last year. One big-name investor is predicting an even sharper drop. "There is no evidence whatsoever to suggest we have bottomed. You could have $15 or $20 oil -- easily", influential money manager David Kotok told CNNMoney. http://money.cnn.com/2015/08/18/inve...ices-15-kotok/ And how will this affect EV sales?