Mark Webber quickest in practice in Sepang ahead of Sunday's Malaysian Grand Prix Mark Webber is quickest in Sepang. MARK Webber drove the quickest time in the first practice ahead of Sunday's Malaysian Formula One Grand Prix, edging out Australian Grand Prix winner Kimi Raikkonen. Red Bull driver Webber, who finished a disappointing sixth at the season-opener in Melbourne last Sunday, outpaced Lotus' Raikkonen by 0.068 seconds. The Finn was followed by reigning world champion teammate Sebastian Vettel of Red Bull who was 0.169 seconds off the pace. Ferrari's Fernando Alonso was fourth fastest, while his teammate Felipe Massa had to settle for seventh. Several other big names, however, struggled amid the hot and humid conditions. Lewis Hamilton ended up 9th for Mercedes, while Jenson Button's McLaren continued its poor form ending up 11th.