Red Bull Racing's Mark Webber has blamed the new Pirelli tyres for his failure to do better this season and for his inability to match his team-mate and reigning F1 2010 world champion, Sebastian Vettel.

Webber has managed to get points in every race this season and took pole position at the Spanish Grand Prix last month. However despite that he has only been on the podium twice - and never on the top step in F1 2011. Currently he lies third in the drivers' standings with 79 points on the board, 6 points behind Lewis Hamilton and alarmingly a massive 64 behind Vettel.

"I hope I can continue my momentum of encouraging results and I hope to get my first win [of 2011] soon, because I was winning quite often last year," he told RDS.ca ahead of this weekend's Canadian GP at Montreal's Circuit Gilles Villeneuve.

"The [Pirelli] tyres though are very different [compared to the Bridgestone tyres we had last year] and the drivers are very sensitive to that.

"It's like a golfer or a tennis player changing his equipment. When you're at this level and trying to gain an edge with tiny details, the small changes can make big differences. But it's up to the drivers to adapt."

One other area he will might to focus on this weekend however, is his starts and according to a recent analysis of drivers' start performances on James Allen's official website, the Aussie is the worst starter in the entire field, having dropped 11 places so far.