Get ready for the most unpredictable race of the season. F1 hasn't raced in Madrid since 1981, at Jarama. This isn't the same track, but instead a totally different and exciting new one. There is currently no historical data given the circuit's inaugural status, so the teams will be hoping for the best.
The circuit is 5.416 kilometers and 22 turns. It's built around the IFEMA exhibition center in Valdebebas, about ten miles northeast of downtown Madrid. It's a hybrid circuit: parts of it are temporary street sections around the exhibition halls and the other parts are permanent purpose-built track, similar to Miami. It's not a one-off, the contract for the Madring will run through 2035.
What makes it a street circuit is the tighter, slower corners weaving through the IFEMA streets versus the fast permanent section. There are two short tunnels that connect the street part to the purpose-built part, passing under an elevated motorway. That transition matters because it forces a compromise most circuits don't ask for. A setup tuned for tight, technical street corners is the wrong setup for a fast, banked section, so teams have to pick a lane, or land somewhere in the middle and lose a little everywhere.
The signature corner is at Turn 12: La Monumental. It's a 550 meter banked corner with roughly 24% banking, and drivers will be in it for about six seconds. It's named after Las Ventas, Madrid's famous bullring. This corner can be hard to drive because it's a blind, crested exit into compression.
The banking matters more this year than it would have a few seasons ago because ground-effect floors are sensitive to ride height. Compression through banking pushes the floor down. The setup trade-off is that they need to run low for performance everywhere else versus high enough to survive the corner without bottoming out. Tires will see sustained loading through banking that flat corners don't. Nobody has degradation data for it, so that should be fun to watch.
Zoom out, and this circuit isn't a classic permanent circuit like Barcelona-Catalunya. It's more in the Miami and Vegas family because of its hybrid street build. What separates it even from those is the scale of the banked centerpiece and the size of the fan zone. The overtaking zones will be in Turns 1, 5, 11, and 17.
As for what to watch for this weekend, FP1 will be the thing to watch. Besides the race, of course. It will give us the bigger picture on how the weekend will look and how well cars will be on track. Teams will be learning the track in real time. Watch for whether La Monumental produces the wheel-to-wheel racing it's designed for, or if it'll be a highlight-reel corner that's hard to actually pass in. Either way, I'll be watching from the first lap of FP1 because on a track like this, there's no such thing as an unimportant session.