THE AT04
AlphaTauri comes to America
EVOLUTION OF THE SPECIES
The stability of the technical regulations means continuity. The AT04 is an evolution of the previous year's car.
AT04 HIGHLIGHTS
THE AT04 Style
WALLPAPERS
- Official car name
- AT04
- Engine
- Honda RBPTH001
- Chassis
- Scuderia AlphaTauri - carbon composite monocoque
- Front suspension
- Scuderia AlphaTauri - carbon composite wishbones, trackrod, upright assemblies, suspension rockers, torsion bars and dampers
- Rear suspension
- Red Bull Technology - carbon composite wishbones with inboard torsion bars and dampers
- Brake ducts
- Scuderia AlphaTauri - front and rear
- Steering
- Scuderia AlphaTauri - power assisted
- Gearbox
- Red Bull Technology - carbon composite maincase longitudinally mounted, hydraulically actuated 8 speed
- Differential
- Hydraulically actuated multiplate
- Clutch
- Hydraulically actuated carbon multiplate
- Exhaust
- RBPT
- Brake System
- Scuderia AlphaTauri/Red Bull Technology
- Driver's seat
- Scuderia AlphaTauri - driver specific carbon composite
- Tyres
- Pirelli
- Fuel system
- Scuderia AlphaTauri
- Overall weight
- 798 kg
- Official car name
- AT04
- Engine
- Honda RBPTH001
- Chassis
- Scuderia AlphaTauri - carbon composite monocoque
- Front suspension
- Scuderia AlphaTauri - carbon composite wishbones, trackrod, upright assemblies, suspension rockers, torsion bars and dampers
- Rear suspension
- Red Bull Technology - carbon composite wishbones with inboard torsion bars and dampers
- Brake ducts
- Scuderia AlphaTauri - front and rear
- Steering
- Scuderia AlphaTauri - power assisted
- Gearbox
- Red Bull Technology - carbon composite maincase longitudinally mounted, hydraulically actuated 8 speed
- Differential
- Hydraulically actuated multiplate
- Clutch
- Hydraulically actuated carbon multiplate
- Exhaust
- RBPT
- Brake System
- Scuderia AlphaTauri/Red Bull Technology
- Driver's seat
- Scuderia AlphaTauri - driver specific carbon composite
- Tyres
- Pirelli
- Fuel system
- Scuderia AlphaTauri
- Overall weight
- 798 kg
THE CONCEPT
With only a few changes to the technical regulations for 2023, the AT04 is very much an evolution of last year’s car. Particular attention has been paid to packaging of components in order to facilitate efficient aerodynamic development. Work on the AT04 chassis and its layout began in July 2022, although our Future Car Group had begun work on the concept well before that, with the aim of making up ground on our competitors, especially in terms of downforce and the weight of the car.
THE CHASSIS
It is the central element around which the entire AT04 is built. Since 2022, it has to withstand revised and more challenging crash tests to the front, rear and sides. For 2023, the roll-bar is larger and stronger, all in the name of improving car safety. The suspension arms are carbon composite, with the fronts designed by Scuderia AlphaTauri, while the rears come from the synergies with Red Bull Technology.
THE POWER UNIT
The AT04 is powered by the Honda RBPTH001 power unit, built by Red Bull Powertrain in Milton Keynes (UK). Power unit development is currently frozen so there are no changes to it or how it is run. The Red Bull Technology 8 speed gearbox has a carbon main case and is longitudinally mounted. The car is a hybrid: attached to the 1600cc V6 turbo internal combustion engine are two electric units that recover energy, the MGU-H from the turbine exhausts and the MGU-K from the rear brakes.
AERODYNAMICS
The ground effect, which is a feature of the current generation of cars, comes from two tunnels that run along the floor, thus generating a greater proportion of downforce from the underside of the car. The FIA has fine-tuned last year’s regulations in this important area, by slightly raising the height of the car floor off the ground and reducing the flexibility of the floor in order to eliminate the annoying porpoising phenomenon, which saw cars bounce up and down at high speeds last year.
THE TYRES
The 18” Pirelli tyres introduced last year have a low profile which makes them less liable to overheat, thus allowing the drivers to push harder for longer. The 2023 tyres feature a new and stronger construction that should deliver greater front-end grip and therefore less understeer. The Pirelli range for this year now features six slick compounds from the softest C0 to the hardest C5. As before, Pirelli will nominate three of these compounds for each race weekend and they will continue with the same identifying markings to make them easy to spot: red for Soft, yellow for Medium and white for Hard. As before, green Intermediates and blue Full Wets are available for wet conditions.