Pirelli has admitted the latest changes it made to its compounds are as far as they can go in terms of development for 2013. Following several complaints over the high degradation levels of its tyres, the Italian company decided to modify its rear rubber for this weekend's Canadian GP. Teams will be issued two sets of the new specification tyres, which will feature a 2012-style kevlar belt, for Friday practice only at the Circuit Gilles Villeneuve. Pirelli motorsport director Paul Hembery concedes they have reached their limit in terms of development for this season. "Ideally we'd like to change the harder compound to give us more guarantees of being under three stops," Hembery...
Full Story »