Looking at the United States Grand Prix, it's clear Ferrari has once again found the performance light switch and flicked it to 'on'.
From the last two races at Austin and Suzuka, which are fairly similar tracks with fast, high-speed sweeping sections, reasonably long straights and the odd twisty bit that requires decent traction, you would say the order of merit for these circuits should be similar.
Interestingly, Ferrari's big advantage on the straights in qualifying, which seemed to go missing in recent races - or at least wasn't strong enough to get it close to Mercedes - seemed to be back.