Despite recording more pole positions and race wins than any other driver in , Hamilton lost the drivers' title by five points to his teammate, Rosberg. The team's policy of letting the pair fight freely led to a number of acrimonious exchanges both on and off the track, culminating in Hamilton defying team-orders at the season finale in Abu Dhabi and deliberately slowing to back Rosberg into the chasing pack at the end of the race in an unsuccessful bid to encourage other drivers to overtake his teammate, which would have allowed him to win the title. Ultimately, a lack of reliability and a handful of driving errors from Hamilton helped Rosberg get closer than in previous years, and a crucial engine blowout in Malaysia allowed the title to fall into Rosberg's hands, which he successfully secured before announcing his shock retirement from the sport immediately after beating his rival.