Lewis Hamilton and Fernando Alonso sustained left-rear punctures throughout FP1 at Interlagos. Any time misplaced is especially important throughout a dash race weekend the place there is just one hour-long observe session earlier than parc ferme and qualifying.
Autosport/Motorsport.com noticed on Thursday night time that mud had dried within the grooves reduce into the observe floor. These are designed to hold rainwater off the observe to stop aquaplaning.
The punctures are understood to have been attributable to screws and nails, with the groups reporting that the majority of this particles was to be discovered within the pitlane.
As such, Brazilian GP F1 tyre provider Pirelli has requested the FIA to wash the circuit.
Brazilian GP, Pirelli motorsport boss Mario Isola defined: “We had a few punctures as a result of particles and we additionally discovered some cuts on the tread. Clearly, we’re going to inform the FIA to wash the observe.
“I imagine the issue is the pitlane greater than on observe. However we now have to concentrate as a result of we had a few punctures.”
Aston Martin efficiency director Tom McCullough stated that following a Thursday observe stroll, the group had famous the filth when feeding again to FIA race director Niels Wittich, as is customary.
He added that two-time champion Alonso reckoned that small stones on the observe floor additionally made it really feel as if he had been “sand blasted” and that the AMR23 returned to the pits with put on on account of the states of the circuit.
McCullough stated: “We all the time stroll the observe; we all the time measure the observe to grasp the grip stage and the state of the observe.
“It was very soiled so far as the rainwater operating throughout – the mud you may see as you go round. We all the time report again what we consider the observe to the race director. We stated it was soiled.
“We did not really discover any particles out on observe. When Fernando did his first run, the primary feedback he had have been, ‘Plenty of stones. I really feel like I have been sandblasted as I am driving.’
“We may see the entrance wing; the entrance of the automobile had taken a tough hit.”
