Max Verstappen was left happy with his performance during Formula 1 Friday practice, but has warned that the weather could impact Red Bull in Qualifying for the British Grand Prix.
The Dutchman was 0.022s clear of Carlos Sainz over one lap with a best time of 1:28.078, looking comfortable at Silverstone.
All teams were utilising the new Pirelli construction which made its debut this weekend, and is designed to handle the increase loads better with a strengthened construction, although the compounds themselves remain unchanged.
"It was quite slippery in the beginning which was due to the high pressures we are running on these tyres. Makes it a bit more difficult in the low speed," Verstappen noted of the initial grip levels due to the higher tyre pressures mandated by Pirelli.
"Overall, the performance has been strong in both sessions and our long runs looked good as well, so it is pretty positive."
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Despite the hot conditions at Silverstone on Friday, it looks set to be changeable wet conditions on Saturday during qualifying.
Verstappen was wary of any potential issues that it could throw up for Red Bull, as he looks to chase his first British Grand Prix victory.
"Let's see tomorrow, of course, also with the weather," he pointed out.
"From outside we want to improve the car a little bit, but overall it's been a strong day again."