F1MATHS: 2026 technical changes in numbers

F1 Grand Prix, GP Singapore, Marina Bay Street Circuit

Formula One will undergo major technical changes in 2026 that reshape both the power units and the aerodynamics of the cars. F1Technical's senior writer Balazs Szabo explains the key changes, delivering the modifications in numbers.

The new power units will feature a 50/50 split between internal combustion and electric power, with the electric output increasing to around 350 kW, nearly tripling current levels. The complex MGU‑H will be removed entirely, and all teams will run on 100% sustainable fuel, marking a significant shift toward environmental sustainability.

On the aerodynamic side, the cars will become smaller, lighter, and more agile, with the weight reduced by 30 kilograms, the wheelbase shortened by 200 millimetres, and the width narrowed by 100 millimetres. Downforce will be reduced by about 30%, and drag by roughly 55%, improving the ability to race closely. The traditional DRS system will be replaced by active aerodynamics, allowing the wings to switch between high‑downforce and low‑drag modes depending on the part of the circuit.

Together, these changes aim to create cars that are more efficient, more sustainable, and better suited for close, competitive racing.

Weight - The 2026 Formula One cars will weigh 30 kilograms less, dropping from 798 kg to 768 kg, as part of the FIA’s “nimble car” concept.

Wheelbase - The maximum wheelbase will be reduced by 200 millimetres, decreasing from 3600 mm to 3400 mm, making the cars shorter and more agile.

Width - The overall width of the cars will shrink by 100 millimetres, going from 2000 mm to 1900 mm, improving manoeuvrability and reducing aerodynamic wake.

Downforce - The FIA is targeting a 30% reduction in downforce, which will make the cars less dependent on aerodynamic load and improve close racing.

Drag level - Drag will be reduced by approximately 55%, significantly increasing straight‑line efficiency and reducing fuel consumption.

DRS - The cars will feature two active aerodynamic modes, known as X‑Mode (high downforce) and Z‑Mode (low drag), replacing the traditional DRS system.

Equal power sources - The 2026 power units will deliver a 50/50 split between internal combustion and electric power, with roughly equal output from both systems.

MGU-H - The electric motor output will increase dramatically, rising to around 350 kW, nearly tripling the current hybrid deployment levels. The MGU‑H will be completely removed, simplifying the hybrid system and reducing costs.

Sustainable fuel - All cars will run on 100% sustainable fuel, marking a major step toward full environmental sustainability.

The 18‑inch wheel diameter will remain unchanged, but the tyres will become narrower, reducing drag and improving agility (exact dimensions still under finalisation)