By Rob Lenihan Herbert Diess acknowledges Tesla’s strength as he seeks to turn on the heat on the competition. The legendary philosopher Lao Tzu once said ”there is no greater danger than underestimating your opponent” and Herbert Diess is clearly taking that to heart. Volkswagen’s CEO is going full tilt boogie in his efforts to catch up with Tesla (TSLA) – Get Tesla Inc Report in the hard-charging race to dominate the electric vehicle market. ‘Moving Very Fast’But Diess does not diss his opponent. Quite the opposite, actually, as he showed on June 1 while speaking at the CAR Symposium confere…