Rule changes to the 2026 F1 cars

Rules apply to all teams. The McLaren MCL40

is shown as an example

Smaller lighter cars

2026 cars will be shorter

and narrower. Weight

reduced by 32kg

to 768kg

Active aerodynamics

Both front and rear

wings open to reduce

drag on straights at

drivers' command

1.9m from 2.0m

Boost button

Deploys energy at any

point over the course

of a lap.

Overtake mode

(replaces DRS)

Electrical energy keeps

car at the maximum

350kW for longer

Hybrid engines

Combine a near 50-50

split in power delivery

between combustion

and electrical energy

3.4m

from

3.6m

Flat floors

End of ground effect

tunnels under car, now

a rear diffuser provides

downforce

Wing

Smaller tyres

Pirelli have reduced

tyre widths by 2.5cm on

the front and 3cm on the

rear, the diameter will

not change

Sustainable fuel

All cars to run on fuel

determined by the FIA

as 100% sustainable

Rules apply to all teams. The McLaren MCL40

is shown as an example

Smaller lighter cars

2026 cars will be shorter and narrower.

Weight reduced by 32kg to 768kg

Active aerodynamics

Both front and rear

wings open to reduce

drag on straights at

drivers' command

1.9m from 2.0m

Boost button

Deploys energy at any

point over the course

of a lap

Overtake mode (replaces DRS)

Electrical energy keeps

car at the maximum

350kW for longer

Hybrid engines

Combine a near 50-50

split in power delivery

between combustion

and electrical energy

3.4m

from 3.6m

wheelbase

Flat floors

End of ground effect

tunnels under car, now

a rear diffuser provides

downforce

Wing

Smaller tyres

Pirelli have reduced

tyre widths by 2.5cm on

the front and 3cm on the

rear, the diameter will

not change

Sustainable fuel

All cars to run on fuel determined

by the FIA as 100% sustainable

Rules apply to all teams. The McLaren MCL40 is shown as an example

1.9m

from 2.0m

Sustainable fuel

All cars to run on

fuel determined by

the FIA as 100%

sustainable

Boost button

Deploys energy at any point

over the course of a lap

Overtake mode (replaces DRS)

Electrical energy keeps car at

the maximum 350kW for longer

Smaller, lighter cars

2026 cars will be

shorter and narrower.

Weight reduced by

32kg to 768kg

3.4m

from 3.6m

wheelbase

Wings

Wings

Front

Rear

Active aerodynamics

Both front and rear

wings open to reduce

drag on straights at

drivers' command

Smaller tyres

Diameter remains

18-inch but Pirelli

has reduced width,

so performance

will differ from

last season

Hybrid engines

Combine a near 50-50

split in power delivery

between combustion

and electrical energy

Flat floors

End of ground effect

tunnels under car,

now a rear diffuser

provides downforce

28cm

(was 30.5)

37.5cm

(40.5)