Lewis Hamilton made the perfect start to his world championship defence with victory in the Australian Grand Prix in Melbourne on Sunday. Starting from pole position, Hamilton never came under pressure during the 58-lap race and led home Mercedes team-mate Nico Rosberg by 1.3s at the chequered flag. Sebastian Vettel finished third on his Ferrari debut, ahead of Williams driver Felipe Massa. With the Manor car's having failed to turn a wheel all weekend, the grid dropped to 17 cars after back problems forced Williams driver Valtteri Bottas out. Click here to read full news..