The debut 2026 Formula 1 regulations, featuring revised power units and active aerodynamics, have narrowed performance gaps across the grid and introduced setup uncertainties that make FP1 times especially fluid. At Interlagos, the circuit’s elevation changes, high-speed sections, and traction demands further reward experimental programs over outright single-lap pace, allowing teams to rotate focus between long runs, tire testing, and data collection. With no clear frontrunner emerging from recent sessions and the session still weeks away, trader consensus reflects broad parity where any driver on a favorable run plan can post the quickest time.