Renault says its third and what's likely to be its final engine upgrade of the 2018 season is nearing completion ahead of its expected debut in a little over two months. With the latest power units expected to last seven rounds each, due to the FIA's stipulated three per driver per season limit, manufacturers are having to stretch out reliability, but it also means performance upgrades are fewer, though they should be more effective. Renault, Ferrari and Honda all introduced their latest specifications in Canada last weekend whilst Mercedes had hoped to do the same, but a quality issue forced a delay until next weekend's French GP, meaning neither the works team nor its...
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