Renault's customer team's, which include Red Bull, Toro Rosso, Lotus and Caterham, are all set to receive a major performance boost for the Spanish Grand Prix this weekend. The power unit supplier is preparing a "significant improvement" to its software programme which it believes will deliver enhanced "driveability and overall performance" according to head of trackside operations, Remi Taffin. "The Spanish Grand Prix will be the second stage of the performance evolutions we kick-started in China," he explained. "While there are not many visible hardware upgrades, there are significant improvements to the software that should further enhance driveability...
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