Alfa Romeo F1 Team Stake C43
Survival cell
ARF1TS moulded carbon fibre composite structure incorporating ATL fuel cell bladder
Safety Structures
Intrusion protected monocoque, impact absorbing front, side and rear structures, principal roll structure (roll hoop), secondary roll structure (halo)
Front suspension
Carbon fibre double wishbone, pushrod-activated inboard torsion springs, rockers and Öhlins damper units
Rear suspension
Carbon fibre double wishbone, pushrod-activated inboard torsion springs, rockers and Öhlins damper units
Brake system
Brembo brake calipers, carbon discs and pads, rear brake by wire control
Power unit
Ferrari hybrid turbo V6
Energy Recovery System
Ferrari hybrid energy recovery system via electrical Motor Generator Units
Gearbox
Alfa Romeo F1 Team Stake carbon fibre maincase with Ferrari cassette containing eight forward speeds and one reverse
Electronics
FIA approved electronics, electrical system including FIA standard ECU
Wheels
18” BBS
Tyres
Pirelli
Survival cell
The survival cell is the heart of the entire car and by far the most complicated structure in a modern Formula One car. Recent years saw further developments aimed at making these the safest Formula One cars in history.
The survival cell is made from a sandwich style carbon composite structure. It offers superior stiffness to weight ratio and structural integrity. The survival cell accommodates the driver’s cockpit area and it is secured to the engine and gearbox by six fasteners which have regulated dimensions and coordinates. Following Romain Grosjean’s spectacular crash in Bahrain 2020, new safety measures have been introduced to make the fuel tank detach from the chassis in a safe manner in the event of a major crash.
Power unit and gearbox
In the current era of hybrid Formula One power units, the main power source is provided by a V6 1600cc engine, mated to a single turbocharger. The energy harvested during a lap by two electric motors (MGUK and MGUH) is stored into a battery pack and deployed via a 120kW electric motor. The gearbox has 8 forward gears and 1 reverse gear.
Since 2022, the fuel used by the power units needs to be composed by at least 10% bio ethanol, in a bid to make the sport more sustainable.
Tyres
2023 is the second season with a big change in tyres, with Pirelli providing new, low-profile 18’’ tyres to replace the 13’’ ones used until 2021. This switch is hugely relevant to road car development and represents one of the big unknowns going into the new season. Pirelli, the sole supplier to the whole of Formula One, has also worked to produce new compounds and tyre structures designed to avoid too much overheating when tyres slide too much.
Car specs
| Survival cell | ARF1TS moulded carbon fibre composite structure incorporating ATL fuel cell bladder |
| Safety structures | Intrusion protected monocoque, impact absorbing front, side and rear structures, principal roll structure (roll hoop), secondary roll structure (halo) |
| Cockpit | Bespoke carbon fibre composite seat, Sabelt 6-point safety harness |
| Front suspension | Carbon fibre double wishbone, pushrod-activated inboard torsion springs, rockers and Öhlins damper units |
| Rear suspension | Carbon fibre double wishbone, pushrod-activated inboard torsion springs, rockers and Öhlins damper units |
| Brake system | Brembo brake calipers, carbon discs and pads, rear brake by wire control |
| Steering System | Power-assisted rack and pinion, customised carbon fibre steering wheel |
| Electronics | FIA approved electronics, electrical system including FIA standard ECU |
| Power unit | Ferrari hybrid turbo V6 |
| Energy Recovery System | Ferrari hybrid energy recovery system via electrical Motor Generator Units |
| Gearbox | Alfa Romeo F1 Team Stake carbon fibre maincase with Ferrari cassette containing eight forward speeds and one reverse |
| Gear Selection | Sequential, semi-automatic |
| Clutch | Carbon composite |
| Wheels | 18” BBS |
| Tyres | Pirelli |
Dimensions & weight
| Overall Length | >5,500 mm |
| Overall Width | 2,000 mm |
| Overall Height | 970 mm |
| Wheelbase | ≤3,600 mm |
| Weight | 798kg |
Ferrari power unit
| Configuration | 90° V6 |
| Displacement | 1,600 cc |
| Bore | 80 mm |
| Stroke | 53 mm |
| Valves | 4 per cylinder |
| Turbo charging | Single Turbine and compressor |
| Maximum fuel flow | 100 kg/h |
| Injection | 500 bar – direct |
Ferrari Energy Recovery System
| Architecture | Hybrid energy recovery system via electrical Motor Generator Units, MGU-H and MGU-K |
| Energy Store | Lithium-Ion battery, ≥20kg |
| Max Energy Deployment | 4 MJ per lap |
| MGU-K Max Power | 120 kW (161hp) |
| MGU-K Max RPM | 50,000 rpm |
| MGU-H Max RPM | 125,000 rpm |
