Good stuff, mirror surround and engine cover too. It's been stated that Max felt the upgraded floor didn't help so he's opted to go with the floor without the cut-out, and clearly that is working for him. Whether the floor was the only spec difference between the two cars remains to be seen but clearly the RB18 in Max's hands was in dominant form for SPA.
Some sources including Marca have said that the RB18 was 4kg lighter at Belgium and weighed in at 802kg and just 4kg over the minimum allowed weight of 798kg. So there's been speculation as to how that was possible since it was understood to be 8kg over the minimum weight. Any news on how that was made possible aside from the speculation of the new chassis? In 2021 Honda introduced the new ES that was lighter than the previous so perhaps there were other weight savings made aside from chassis itself.