Looks good! I wonder why they feel the need to use slicks for pushing the car around the paddock?
I presume those are off-the-shelf slicks from Pirelli racing tyre catalogue.
Looks like it says 245/645 R18 [width/diameter] on the sidewal. Very svelte and sleek looking: similar to the F1 front tyre outer diameter and width used from mid-eighties until 1997 [namely 10.0"/25.0" R13 for the imperial sized Goodyears].
Unfortunately, actual 2021 front tyres will be the somewhat chunkier 270/720 R18, if I recall correctly?
Still, nevertheless, a huge improvement on the comical wide 305mm front tyres used in 2019 [305/670 R13].