Reports concern Pirelli again! This time they are accused of not filing a report to the FIA that they had changed the construction of the tyres prior to the British Grand Prix.
Formula One drivers continue to complain and worry about the Pirelli tyres, and now Perez adds his thoughts after the Korean Grand Prix.
Pirelli boss Paul Hembery claimed that "some teams went against our recommendations".
Every car in the field will be eligible to run the new unmarked Pirelli tyre.
Pirelli wants to know what they should do.
While in Sao Paulo to announce Pirelli's commitment to the Brazilian Stock Car series, Hembery commented on the new 2013 F1 Pirelli tyres: "The walls flex a little more."
At Spa-Francorchamps rumours again surfaced regarding a possible change of a tyre supplier