Towriss: Cadillac engine programme running

Towriss: Cadillac engine programme running ‘ahead of schedule’

Cadillac is currently finding its feet in Formula 1 as a Ferrari engine customer, but the American outfit’s... The post Towriss: Cadillac engine programme running ‘ahead of schedule’ appeared first on F1i.com.

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<p>Cadillac is currently finding its feet in Formula 1 as a Ferrari engine customer, but the American outfit’s...</p> <p>The post <a href="https://f1i.com/news/562802-towriss-cadillac-engine-programme-running-ahead-of-schedule.html">Towriss: Cadillac engine programme running ‘ahead of schedule’</a> appeared first on <a href="https://f1i.com">F1i.com</a>.</p>

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technical Regulations

Art. 1.1

Art. 5.1

Hover over badges for quick summaries, or scroll down for full official text and simplified explanations.

Full Regulation Text

Technical Regulations

Article 1.1

FIA Source

Homologation dossier submission

Chapter: Appendix C5

In Simple Terms

Before a new engine manufacturer can supply power units to F1 teams, they must submit official documentation to the FIA by March 1st of their first year competing. Each manufacturer can only submit one set of these documents.

Engine manufacturers must register with the FIA before competing
Homologation dossier (technical documentation) must be submitted by March 1st of the first year supplying engines
Only one homologation dossier is allowed per manufacturer
This ensures all engines meet F1 technical regulations and standards

Official FIA Text

Any PU Manufacturer registered must submit to FIA a Power Unit homologation dossier before 1 March of first year intending to supply. Each PU Manufacturer shall present only one homologation dossier.

homologationpower unitpu manufacturerenginefia submission

2026 Season Regulations

Technical Regulations

Article 5.1

FIA Source

Power Unit Components

Chapter: Chapter I - Power Unit

In Simple Terms

F1 limits how many engine parts each driver can use per season to control costs. You get 3 of most components (engine, turbo, MGU-H, MGU-K) and 2 of others (battery, control electronics). Exceed these limits and you get grid penalties. Teams must balance performance versus reliability.

3 engines (ICE) per season
3 turbos, MGU-H, MGU-K per season
2 energy stores and control electronics per season
Exceeding limits = grid penalties

Official FIA Text

Each driver may use no more than 3 internal combustion engines (ICE), 3 motor generator units-heat (MGU-H), 3 turbochargers (TC), 3 motor generator units-kinetic (MGU-K), 2 energy stores (ES), 2 control electronics (CE) during the Championship.

grid penaltiesreliabilityengine modespower unitenginePUICEMGU-H

2026 Season Regulations