Austin rewards an all-round package rather than a specialism. The lap asks for high-speed change of direction, traction out of slow corners, and a car that tolerates a famously bumpy surface, so ride quality and mechanical grip can matter more than headline aero numbers. There is a proper overtaking zone at the end of the back straight, which means grid position is helpful but recoverable. Tyre degradation through the fast esses is genuine and one-stop versus two-stop calls often decide the podium. Late-October Texas weather is volatile enough to turn a session on its head. Favour teams that get their car working over the bumps and drivers comfortable racing wheel to wheel.

Altitude makes Mexico City an outlier and worth treating separately from a team's general form. Thin air means maximum wings produce modest downforce, so the cars are quick in a straight line and slippery in the corners, and cooling capacity becomes a genuine performance differentiator. Braking is compromised, tyres struggle to reach working temperature, and locking up into Turn 1 is common. That first corner is wide enough to invite three cars in and frequently produces contact and safety cars, so lap-one survival is a real variable. Qualifying position helps but the long run to Turn 1 makes places gettable. Favour packages with cooling headroom and drivers who stay out of trouble early.