Ferrari's main aim of testing the Halo cockpit protection was to check the visibility of the concept.
Kimi Raikkonen ran the proposed cockpit protection during his installation lap on the penultimate day of pre-season testing at the Circuit de Barcelona-Catalunya, with the design screwed in to the top of the chassis where cooling vents sit either side of the cockpit. The final design proposal would see it integrated in to the chassis itself with hinges.
While the prototype used on Thursday was made of carbon fibre and wider than Ferrari expects any final design to be, Raikkonen reported no problems with visibility while completing his first lap of the day.
Ferrari produced the prototype itself, but will not run it again during this week's test having had the initial feedback on its impact on visibility.
Follow live coverage and timing from pre-season testing here
Keep up to date with all the F1 news via Facebook and Twitter
Lewis Hamilton: Australian GP – Albert Park Lewis Hamilton’s very first Grand Prix weekend…
One driver has a hugely famous name, the other is a special Grand Prix winner,…
As the Ferrari factory in Maranello glows in festive crimson, a sense of anticipation hums…
Lando Norris had just done the hardest thing in motorsport – winning the Formula 1…
A veteran of 41 Grands Prix starts, Howden Ganley - seen here above hitting a…
Ferrari’s Charles Leclerc may not have ended the season with a silver trophy in hand,…