# 2025 BRITISH GRAND PRIX ## 04 - 06 July 2025 The FIA Formula One Technical Delegate From The FIA Formula One Technical Delegate To The Stewards Document 11 Date 04 July 2025 Time 12:32 Title Technical Delegate's Report Description New PU Elements for this Competition **Enclosed 12 GBR GP 25 TDR3.pdf Jo Bauer** # 2025 BRITISH GRAND PRIX ## 04 - 06 July 2025 From : The FIA Formula One Technical Delegate To : The Stewards Date : 04 July 2025 ## Technical Delegate's Report The following drivers will start the twelfth Competition of the 2025 Formula One World Championship with a new internal combustion engine (ICE): ## Number Car Driver Previously used ICE 81 McLaren Mercedes Oscar Piastri 2 04 McLaren Mercedes Lando Norris 2 16 Ferrari Charles Leclerc 3 44 Ferrari Lewis Hamilton 3 01 Red Bull Racing Honda RBPT Max Verstappen 2 22 Red Bull Racing Honda RBPT Yuki Tsunoda 3 63 Mercedes George Russell 3 12 Mercedes Kimi Antonelli 3 18 Aston Martin Aramco Mercedes Lance Stroll 2 14 Aston Martin Aramco Mercedes Fernando Alonso 3 87 Haas Ferrari Oliver Bearman 3 06 Racing Bulls Honda RBPT Isack Hadjar 2 27 Kick Sauber Ferrari Nico Hülkenberg 2 05 Kick Sauber Ferrari Gabriel Bortoleto 2 The internal combustion engine used by the above drivers is one (1) of the four (4) new internal combustion engines allowed for the 2025 Championship season and this is in conformity with Article 28.2 of the 2025 Formula One Sporting Regulations. The following drivers will start the twelfth Competition of the 2025 Formula One World Championship with a new turbocharger (TC): ## Number Car Driver Previously used TC 81 McLaren Mercedes Oscar Piastri 2 04 McLaren Mercedes Lando Norris 2 16 Ferrari Charles Leclerc 3 44 Ferrari Lewis Hamilton 3 22 Red Bull Racing Honda RBPT Yuki Tsunoda 3 63 Mercedes George Russell 3 12 Mercedes Kimi Antonelli 3 87 Haas Ferrari Oliver Bearman 3 06 Racing Bulls Honda RBPT Isack Hadjar 2 27 Kick Sauber Ferrari Nico Hülkenberg 2 05 Kick Sauber Ferrari Gabriel Bortoleto 2 The turbocharger used by the above drivers is one (1) of the four (4) new turbochargers allowed for the 2025 Championship season and this is in conformity with Article 28.2 of the 2025 Formula One Sporting Regulations. The following drivers will start the twelfth Competition of the 2025 Formula One World Championship with a new motor generator unit-heat (MGU-H): ## Number Car Driver Previously used MGU-H 81 McLaren Mercedes Oscar Piastri 2 04 McLaren Mercedes Lando Norris 2 16 Ferrari Charles Leclerc 3 44 Ferrari Lewis Hamilton 3 22 Red Bull Racing Honda RBPT Yuki Tsunoda 3 63 Mercedes George Russell 3 12 Mercedes Kimi Antonelli 3 18 Aston Martin Aramco Mercedes Lance Stroll 2 14 Aston Martin Aramco Mercedes Fernando Alonso 3 87 Haas Ferrari Oliver Bearman 3 06 Racing Bulls Honda RBPT Isack Hadjar 2 27 Kick Sauber Ferrari Nico Hülkenberg 2 05 Kick Sauber Ferrari Gabriel Bortoleto 2 The motor generator unit-heat used by the above drivers is one (1) of the four (4) new motor generator units-heat allowed for the 2025 Championship season and this is in conformity with Article 28.2 of the 2025 Formula One Sporting Regulations. The following drivers will start the twelfth Competition of the 2025 Formula One World Championship with a new motor generator unit-kinetic (MGU-K): ## Number Car Driver Previously used MGU-K 81 McLaren Mercedes Oscar Piastri 2 04 McLaren Mercedes Lando Norris 2 16 Ferrari Charles Leclerc 3 44 Ferrari Lewis Hamilton 3 01 Red Bull Racing Honda RBPT Max Verstappen 2 22 Red Bull Racing Honda RBPT Yuki Tsunoda 3 63 Mercedes George Russell 3 12 Mercedes Kimi Antonelli 3 18 Aston Martin Aramco Mercedes Lance Stroll 2 14 Aston Martin Aramco Mercedes Fernando Alonso 3 87 Haas Ferrari Oliver Bearman 3 06 Racing Bulls Honda RBPT Isack Hadjar 2 27 Kick Sauber Ferrari Nico Hülkenberg 2 05 Kick Sauber Ferrari Gabriel Bortoleto 2 The motor generator unit-kinetic used by the above drivers is one (1) of the four (4) new motor generator units-kinetic allowed for the 2025 Championship season and this is in conformity with The following drivers will start the twelfth Competition of the 2025 Formula One World Championship with a new energy store (ES): ## Number Car Driver Previously used ES 16 Ferrari Charles Leclerc 1 44 Ferrari Lewis Hamilton 1 18 Aston Martin Aramco Mercedes Lance Stroll 1 55 Williams Mercedes Carlos Sainz 1 The energy store used by the above drivers is one (1) of the two (2) new energy stores allowed for the 2025 Championship season and this is in conformity with Article 28.2 of the 2025 Formula One Sporting Regulations. The following drivers will start the twelfth Competition of the 2025 Formula One World Championship with a new control electronics (CE): ## Number Car Driver Previously used CE 18 Aston Martin Aramco Mercedes Lance Stroll 1 55 Williams Mercedes Carlos Sainz 1 The control electronics used by the above drivers is one (1) of the two (2) new control electronics allowed for the 2025 Championship season and this is in conformity with Article 28.2 of the 2025 Formula One Sporting Regulations. The following drivers will start the twelfth Competition of the 2025 Formula One World Championship with a new exhaust system (EX): ## Number Car Driver Previously used EX 81 McLaren Mercedes Oscar Piastri 2 16 Ferrari Charles Leclerc 4 44 Ferrari Lewis Hamilton 4 01 Red Bull Racing Honda RBPT Max Verstappen 4 22 Red Bull Racing Honda RBPT Yuki Tsunoda 5 18 Aston Martin Aramco Mercedes Lance Stroll 2 87 Haas Ferrari Oliver Bearman 4 06 Racing Bulls Honda RBPT Isack Hadjar 4 30 Racing Bulls Honda RBPT Liam Lawson 5 27 Kick Sauber Ferrari Nico Hülkenberg 2 05 Kick Sauber Ferrari Gabriel Bortoleto 2 The exhaust system used by the above drivers is one (1) of the eight (8) new exhaust systems allowed for the 2025 Championship season and this is in conformity with Article 28.2 of the 2025 Formula One Sporting Regulations.