Mercedes began the 2015 season in ominous fashion, as their new F1W06 Hybrid set the early pace and racked up an astonishing 157 trouble-free laps on the opening day in Jerez.

In an exclusive interview, the Silver Arrows’ head of motorsport Toto Wolff explains why the team hasn’t let up over the winter, discloses which rival teams he fears the most, and discusses why the team is braced for more driver tension in 2015 via Formula1.com – Latest News http://ift.tt/1CRAj8F