Look at that opening for rear suspension in body work to allow the car squatting..
But last year they used the narrow pilon-rounded nose and then had to back off again, maybe it still doesn't quite work (or really doesn't bring what they need, one of the things they said 'had we known what we know now at the start of the season, we would have been much faster from the go')
Single wastegate on an inverted layout compared to Ferrari.