The 2026 rule changes
The biggest rule change in years: new engines, moving wings, overtake mode and a bigger grid.
2026 brought the biggest rule change in years. Here's what's different, in plain English.
Cars and engines
- Power units are now split roughly 50/50 between the petrol engine and the electric motor. The old MGU-H part has been dropped, and the electric side is much more powerful.
- The engines run on fully sustainable fuel.
- The cars have been redesigned, and are smaller and lighter than before.
Active aerodynamics (no more DRS)
The old drag reduction system (DRS), where the driver opened a flap on the rear wing to go faster on a straight, has been replaced. Now the front and rear wings both adjust:
- Straight mode: the wings flatten for less drag and a higher top speed on the straights.
- Corner mode: the wings go back to the high-downforce setting for grip in the corners.
Overtake mode and boost
- Overtake mode: if a driver is within about one second of the car in front at a set point on the track, they get extra electrical power for the following lap to attack.
- Boost: a driver can press a button for maximum power from the engine and battery, to attack or defend. It uses up battery charge, so it can't be used all the time.
A bigger grid
There are 11 teams and 22 cars, with Cadillac joining and Audi taking over the Sauber team. Qualifying changed to match, with six drivers knocked out after Q1 and six more after Q2. See qualifying.
Rules are updated from time to time. This page is a simple guide, not the official regulations.