NEW YORK: Buying shares of Volkswagen AG before the potential toll of the German carmaker's diesel emissions scandal becomes clear is a dangerous move for investors, according to a report on Sunday in Barron's financial newspaper. According to Barron's, Volkswagen's shares trade for 5.1 times estimated 2016 earnings, and 0.6 times book value, though analysts' earnings forecasts are failing to account for potential charges.