Ferrari has revealed that its power unit token has been spent on changes to its internal combustion engine, with new versions being fitted to Sebastian Vettel and Kimi Raikkonen's cars overnight at the Austrian Grand Prix. Motorsport.com revealed on Thursday that Ferrari had used one of its remaining four tokens ahead of the Austrian Grand Prix, with sources suggesting the focus had been on a revised MGU-K. However, the Maranello outfit has now explained that instead the work has focused on a revised camshaft within the engine itself. There is no official explanation for why the change to the camshaft has been made, but it could be associated with a new specification of fuel that Shell is...
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