ADUO stands for Additional Development and Upgrade Opportunities, a new mechanism baked into F1's 2026 power unit regulations, designed to stop one manufacturer from running away with a huge performance advantage the way Mercedes did after the last major engine overhaul in 2014, when the power unit determined the competitive...

F1 uses different tire compounds (essentially a specific formula and construction) because tires represent a fundamental trade-off between grip and durability. Giving teams choices between that trade-off, plus mandating they use more than one, is a deliberate way to create strategic variation and more interesting racing. Softer tire compounds use...

F1 cars don't refuel during pit stops because refueling was banned starting in the 2010 season, and the ban has stuck ever since. A few reasons drove that decision: Safety Refueling rigs pumping highly flammable fuel at high pressure, in close proximity to a running engine and a crew of...

A technological March from the 1950s to the 2020s.

To the casual bystander, Formula 1 cars and IndyCars look basically the same: pointy-shaped with big wings and tires, and a driver in the middle. But once you move beyond the basic silhouette, the differences between the two quickly become apparent. 

Clipping happens when the Energy Recovery System runs out of deployable electrical energy before the end of a straight, causing a sudden, visible drop in power even though the driver still has the throttle fully pressed. "Super clipping" is a more advanced, intentional technique teams now use to manage that energy problem.

An F1 Sprint weekend is a modified race weekend format used at a handful of selected events each season. It adds an extra, shorter race into the weekend alongside the usual Grand Prix, and it changes how qualifying works, too.