Kimi Raikkonen finished the penultimate test day quickest for Ferrari and in the process posted the quickest lap seen during testing so far.
The Finn posted his best lap, a 1:22.765, on the new Ultra-Soft tyre during the morning session, but prior to that he surprised the paddock by running the new Halo concept for a single lap to test its visibility.
Felipe Massa finished second quickest, albeit half a second down on Raikkonen's best using the slower soft tyre.
Nico Hulkenberg and Max Verstappen also lapped on the Ultra-Soft tyre, finishing third and fourth respectively. The latter completing 159 laps in the process.