Pirelli chief Paul Hembery has called on Formula 1 teams to stop being paranoid over tyre testing.
Hembery is frustrated with Pirelli having to use its outdated 2010 Renault test car for tyre development at a time when the Mercedes test scandal and Silverstone blowouts have thrust the F1 tyre supplier further into the spotlight than ever before.
The fear of competitors gaining an unfair advantage seems to be at the heart of the 'paranoia' surrounding tyre tests, and Hembery believes that has to change.
We have to have some things done differently," Hembery told Autosport.
"You can do a lot of things on simulators and even there I cannot use just one simulator, because then I will be told I am biasing one team over another.
"The paranoia levels are high because the competition levels are high, but at a certain point that has to be let go to let us do our job.
"We are not interested in helping one team over another, we just want to do our job.
"We don't care if we do tests with five different teams, one after the other."
Ironically, says Hembery, the controversial Mercedes test at Barcelona in May showed just how vital such running could be.
"It sounds terrible when I say it but the best tyre test we have done for three years was with Mercedes at Barcelona," Hembery admitted.
"Looking at it in a selfish way, from our point of view, it was the best tyre test we have done.
"We had hard cars, hard drivers, working professionally and giving us exactly what we want."
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