Vettel looked poised to claim his fourth win of F1 2013 at Silverstone only for his car to let him down 11 laps from the chequered flag when he lost drive .
His fourth win of F1 2013 at Silverstone is the eighth round in the championship .
Vettel looked poised to claim his fourth win of F1 2013 at Silverstone , the eighth round in the championship , only for his car to let him down 11 laps from the chequered flag when he lost drive .