Frustrated Vettel vows to refuel

ABU DHABI - Sebastian Vettel said he needed "some time for myself" to recover from a second straight season in which his Formula One title challenge crumbled under relentless pressure from Lewis Hamilton.

Vettel led Hamilton by eight points after 10 of 21 races and 4-3 in wins, only to lose by 88 points overall and 11-5 in races won.

Having shaped up as a classic season between two drivers who were both chasing a fifth title, it ended as a one-horse race as Hamilton cantered home. It moved Mercedes driver Hamilton level with Argentine great Juan Manuel Fangio on five titles and two behind record-holder Michael Schumacher.