Renault's engine development focus is on 2018 and getting on top of the string of failures that have blighted its Formula 1 season, says its managing director Cyril Abiteboul. Daniel Ricciardo, Nico Hulkenberg and Brendon Hartley suffered engine problems in the Mexican GP as Abiteboul admitted it was too aggressive in its approach for Mexico. It has been trialling a revised V6 engine, which features development parts for 2018, since Austin with the upgrade believed to be worth around two tenths depending on the track. "We know the update is working, there is no doubt about that but it's an update that is only bringing a portion of what we want to bring over the winter and 2018 has to...
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