Pirelli's testing data has been constrained by the power unit issues facing Renault-powered teams so far this pre-season.Renault's issues have seen limited running from Red Bull, Lotus, Toro Rosso and Caterham, with Pastor Maldonado saying on Thursday that the engine is still not at 100%. For Pirelli, the two tests in the heat of Bahrain should help test the tyres in more representative conditions than Jerez in January, but motorsport director Paul Hembery admits it has yet to see representative performance from those four teams.Asked during an exclusive interview with Crash.net if Renault's problems had impacted on Pirelli's attempts to learn about its new tyres, Hembery replied: “A...
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