I would suspect they are bringing a lot of spare parts to a GP, enough to rebuild a very damaged car.
PS: Miss Wolff was in Bottas's car for her practise. I think they only remove her number 41 number sticker and repaste number 77 for Bottas when he drives the car.
I keep wondering if she and Toto has some sort of agreement to not talk of work so that they do not accidently leak some info to the other team, well apart from the usual day talk if you know what I mean...
MAMBA