While the FIA has provided the roadmap, Maranello has responded with Project 678 (the SF-26). It is a car built on the edge of the regulations, designed to be as aggressive as a Lewis Hamilton qualifying lap, but recent track data suggests that being first to the edge sometimes means finding the cliff.
Here is how the official F1 2026 vision pairs up against the reality of the Ferrari SF-26.
1. The Power Unit: 50/50 Reality Check
The headline change for 2026 is the elimination of the MGU-H and the nearly 300% increase in electrical deployment from the MGU-K.
| Feature | Official F1 2026 Regs | Ferrari SF-26 (Project 678) |
| Power Split | 50% ICE / 50% Electric (400kW / 350kW) | Aggressively compact engine packaging to prioritize aero. |
| Energy Recovery | 9MJ recovery per lap via MGU-K. | Hybrid management “growing pains” in early 2026 races. |
| The “Flaw” | 290km/h deployment taper for lead car. | Observed “super-clipping” issues on long straights (Sector 3, China). |
The Clash: While F1 promises a balanced power delivery, the SF-26 has struggled with nonlinear energy response. In recent sprint sessions, both Leclerc and Hamilton have faced moments where the power unit “cuts” energy earlier than expected. Ferrari’s “revolutionary” compactness might be causing thermal sensitivity, making their 350kW deployment less predictable than the steady Mercedes units.
2. Aerodynamics: Z-Mode vs. The “FTM” Exhaust
F1 has replaced DRS with Active Aerodynamics Z-Mode for corners and X-Mode for straights. Ferrari, however, has added its own “unoffical” aero element: the FTM Variable Exhaust System.
- The F1 Standard: Moving front and rear wing flaps that open and close like Venetian blinds to balance downforce and drag.
- The Ferrari Gamble: Technical scrutiny is currently on Ferrari’s FTM exhaust solution, which reportedly uses variable blowing effects to help the diffuser airflow.
- The Risk: While it provides a “Pinkies Down” raw performance edge in high-speed corners, paddock rumors suggest it may be costing the SF-26 roughly 14 to 15 horsepower due to back-pressure issues.
3. Chassis: The Nimble Concept
The FIA mandated a “slimming down” of the cars to promote wheel-to-wheel racing. Ferrari has embraced this with a radical shift in mechanical philosophy.
| Spec | Official 2026 Mandate | Ferrari SF-26 Execution |
| Weight | 768kg (30kg reduction) | Pushing the limit; aggressive use of carbon composites. |
| Wheelbase | 3400mm (200mm shorter) | Extremely short, agile wheelbase for technical sectors. |
| Suspension | Open philosophy | Push-rod rear suspension (a major shift from SF-25). |
The Result: The SF-26 is a monster in the corners. Hamilton recently noted that the car is “exceptionally strong” in the turns, largely thanks to the new push-rod configuration and the shortened wheelbase. However, that cornering speed comes at the cost of straight-line stability when the active aero X-mode is engaged.
