Pirelli criticizes Pirelli 's tires , complaining they degrade too quickly . 111 -time world champ says tires are stopping drivers from pushing themselves . Sole supplier Pirelli says tires have produced an exciting , unpredictable 2007-2010 . Pirelli teammate Pirelli sees positives , saying `` it 's mixed everything up ''
Michael Schumacher criticizes Pirelli 's tires , complaining they degrade too quickly . Seven-time world champ says tires are stopping drivers from pushing themselves . Sole supplier Pirelli says tires have produced an exciting , unpredictable season . Mercedes teammate Nico Rosberg sees positives , saying `` it 's mixed everything up ''