Samwise F1 Newsletter
Monday, April 6, 2026
Next Race: Miami Grand Prix | May 1–3F1 Stakeholders Converge on April 9 for Safety and Performance Rule Summit
F1 stakeholders gather on April 9 for a crunch summit to determine which 2026 regulation changes can be approved before the Miami Grand Prix on May 3. The Race reports that the FIA’s priority fix targets the dangerous speed differential when drivers in different phases of energy deployment approach each other on high-speed straights — the root cause of Bearman’s Suzuka crash. Options on the table include a more gradual MGU-K deployment ramp-down, an earlier energy recovery threshold, and expanded active-aero override zones for added stability. The FIA retains the authority to mandate safety-driven changes unilaterally, giving the April meeting added urgency and significance.
Sources: The Race | The Race (timeline)
FIA’s Double Whammy Against Mercedes: Compression Ratio Clampdown Meets ADUO
Mercedes’ advantage is set to narrow on two fronts from June. The FIA will from that date measure compression ratios on hot engines at 130 degrees Celsius, closing a loophole that has allowed Mercedes’ power unit to run a higher in-operation compression ratio than rivals — a benefit estimated at around three-tenths of a second per lap. Simultaneously, the ADUO system will begin delivering out-of-cycle power unit upgrades to Ferrari, Honda, and Audi. The convergence of tighter rules for the front-runner and extra development freedom for rivals represents the FIA’s clearest signal that the 2026 engine formula was not designed for a one-team walkover.
Sources: GPFans
Red Bull Falls Outside ADUO Eligibility as DM01 Engine Proves Too Competitive
Red Bull Powertrains’ DM01 engine has missed out on ADUO — the FIA’s Additional Development and Upgrade Opportunities lifeline — because the unit is too competitive to meet the two-per-cent deficit threshold. For Max Verstappen, whose RB22 chassis has repeatedly been labelled “undriveable” and “terrible” by the team’s drivers, the ruling leaves Red Bull without the engine development boost rivals will enjoy. Ferrari, Honda, and Audi are all expected to qualify. With the April factory break ongoing, Red Bull now faces Miami with chassis woes unresolved and no power unit safety net in sight, deepening the team’s frustration after a difficult start to the 2026 campaign.
Sources: GPFans
FIA Timeline Shift Gives Aston Martin and Honda a Vital ADUO Lifeline
Aston Martin received a boost after the FIA agreed to advance the first ADUO assessment point to after Miami, resolving a scheduling complication caused by the cancellation of the Bahrain and Saudi Arabian rounds. Originally planned for after race six, the April break created uncertainty about whether eligibility checks would fall at Miami or Monaco. With the adjustment confirmed, Honda — whose trackside general manager has said “we won’t see major performance changes until the ADUO” — can now target a power unit upgrade within the season’s first block. The ruling offers Aston Martin, currently near the foot of the constructors’ standings, a firm timeline for performance improvement.
Sources: GPFans
Antonelli Warns Ferrari’s ADUO Eligibility Will Make Them an Even Greater Threat
Championship leader Kimi Antonelli has acknowledged that Ferrari will be granted ADUO upgrade opportunities starting in June, and warned that the Italian team’s increased development freedom will make them a greater threat to Mercedes. Speaking after his Japanese GP victory, Antonelli noted that Ferrari’s car was already strong, adding that improved power unit performance would bring them closer still. Ferrari is estimated to be around 20 horsepower behind the Mercedes unit — a gap that places them within the ADUO eligibility window. With Leclerc 23 points behind Antonelli in the championship, any significant Ferrari engine upgrade at Miami could reshape the title fight before the season’s halfway point.
Sources: GPFans
Komatsu Urges Caution as F1 Weighs Rule Changes After Bearman’s Suzuka Crash
Haas team principal Ayao Komatsu has urged F1 decision-makers not to rush rule changes in the wake of Oliver Bearman’s 50G crash at Suzuka, warning that hasty regulatory shifts could create new problems rather than solve existing ones. Komatsu said the sport must fully understand the cause of incidents before acting, stressing the 2026 regulations represent a fundamental platform shift that needs time to mature. The Haas boss does not oppose targeted safety improvements but cautioned against sweeping changes driven by a single incident. Bearman, who suffered a bruised right knee in the impact and was cleared of fractures, is expected to be fully fit for Miami.
Sources: Sky Sports F1 | GrandPrix247
Alonso Names Son Leonard as F1 Sends First Paddock Pass to Newest Fan
Two-time world champion Fernando Alonso has confirmed his son’s name is Leonard Alonso Jimenez, correcting social media speculation that the baby had been named Fernando after his father. Alonso and partner Melissa Jimenez welcomed Leonard shortly before the Japanese Grand Prix, with Alonso arriving late in Suzuka after missing the media day. Formula 1 celebrated the occasion by sending Leonard a personalised paddock pass; Alonso shared the image on social media, thanking F1 and calling it “first of many.” Leonard’s arrival coincided with one of Aston Martin’s more encouraging weekends of 2026, with Alonso completing full race distance at Suzuka for the first time this season.
Sources: GPFans | Motorsport.com
Championship Standings
Drivers: 1. K. Antonelli (72) | 2. G. Russell (63) | 3. C. Leclerc (49)
Constructors: 1. Mercedes (135) | 2. Ferrari (90) | 3. McLaren (56)