Erik Tveit's 'Steady KERS DRS in all 5 rounds' command and Thomas Hackel's round by round strategies worked and both of their teams rose greatly in 5 turns. While Rosberg was the first one to retire with a mechanical failure. Mercedes is so unlucky as Schumacher always suffered from his kamikaze driving.
Some drivers gained advantage with pitstops, this is because the main straight is anormally long and pitstop times are shorter than they should be. (will be changed)
As you can see without DRSs, lots of drivers stucked in the traffic.