Mercedes' George Russell says he was surprised by the visibility offered by the Halo head protection device, which is to be introduced next season in Formula 1.
Russell drove the W08 across both days of the in-season test at Hungary this week and completed a number of laps with the Halo fitted.
Some drivers complained that it blocked their view a little and could cause a problem on uphill sections, such as Eau Rouge and Turn 1 at the Circuit of the Americas, but Russell said his initial impressions were positive and it even improved his view at certain times.
"The Halo was more surprising than I expected," said the Mercedes junior. "I had a much better view than I ever imagined.
"One very funny positive was that at the end of the day, when the sun was coming down, the Halo actually blocked the sun from my eyes, so I saw more than I would usually see.
"To be honest, from a driver's perspective, when you're doing a qualifying lap, or whatever, the visibility is completely fine."
Russell admitted it could cause some problems, but they would be easy to overcome.
"The only hindrance could be potentially the start lights at the start of a race, but I was extremely surprised by it and how much I could actually see."
On getting in and out of the car, he added: "I think it just takes a bit of experience to find the right techniques. I struggled initially, but towards the end, after a few trial runs, I was fine getting in and out."
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