F1 Car Parts Explained: A Simple Beginner’s Guide to Formula 1 Components

Have you ever watched Formula 1 and wondered how one car can look similar to another yet perform completely differently?

An F1 car is not simply an engine attached to four wheels. It is an interconnected system in which every major component affects several others.

A new front wing can change the airflow reaching the floor. A suspension adjustment can alter how consistently that floor works. A change in brake cooling can affect the aerodynamics around the wheels.

Think of the car like a highly complicated orchestra. Each component has its own job, but performance only comes when everything works together.

This guide explains the main parts of a modern 2026 F1 car and why each one matters.

The Chassis and Survival Cell: The Car’s Foundation

The central structure of an F1 car is its survival cell, commonly described as the monocoque or chassis.

It is made primarily from carbon-fibre composite materials, which combine high strength with relatively low mass. The driver sits inside this structure, with the front suspension and other major assemblies attached around it.

The survival cell has two essential jobs:

• It provides the rigid foundation around which the car is built.
• It protects the driver during an accident.

Before a chassis can race, it must pass FIA impact and load tests. These assess how the structure responds to frontal, side and rear impacts, as well as the forces it may experience during a major crash.

The driver’s seat, safety harnesses, cockpit padding and fire-extinguishing equipment are all incorporated into this central safety structure.

The engine is mounted behind the survival cell, with the gearbox behind the engine. These components form part of the structural chain running through the car.

The Halo and Crash Structures

The Halo is the curved titanium structure surrounding the upper part of the cockpit.

Its purpose is to protect the driver’s head from large objects, another car or contact with barriers. Although the Halo is visually prominent, it is only one part of the car’s safety system.

F1 cars also contain:

• A front impact structure in the nose.
• Side-impact protection around the survival cell.
• A rear impact structure.
• Roll structures above and behind the driver.
• Wheel-retention systems designed to prevent detached wheels travelling away from the car.

These structures are designed to absorb and redirect energy during an accident while preserving the space around the driver.

The Power Unit: More Than an Engine

In Formula 1, the complete propulsion system is called the power unit.

The 2026 power unit combines:

• A 1.6-litre turbocharged V6 internal combustion engine.
• An MGU-K electric motor-generator.
• An Energy Store, commonly called the battery.
• Control electronics.
• A turbocharger.
• Exhaust and supporting systems.

The petrol engine and electrical system work together to drive the rear wheels.

Unlike the previous generation, the 2026 power unit does not contain an MGU-H. The MGU-H recovered energy from the turbocharger and exhaust system, but it was removed when the new regulations were introduced.

This means the 2026 hybrid system centres on the MGU-K and the energy it can recover through braking and other permitted operating conditions.

The Internal Combustion Engine

At the centre of the power unit is a 1,600cc six-cylinder engine. Its six cylinders are arranged in a 90-degree V formation, which is why it is normally described as a 1.6-litre V6.

A turbocharger forces additional air into the engine, allowing more fuel energy to be converted into power than a similar naturally aspirated engine could produce.

The engine is built to operate under enormous pressure and temperature. It requires carefully controlled cooling, lubrication, fuel delivery and electronic management.

F1 does not publish one fixed horsepower figure that applies to every power unit in every situation. Actual output depends on engine performance, electrical deployment, car speed and the operating limits set by the regulations.

The important point is that the internal combustion engine and electrical system operate together. Neither tells the full story on its own.

The MGU-K and Electrical System

MGU-K stands for Motor Generator Unit–Kinetic.

It has two connected functions:

1. It can recover kinetic energy when the car slows.
2. It can return electrical energy through the drivetrain to help propel the car.

During braking, the MGU-K acts partly like a generator. Rather than allowing all of the car’s kinetic energy to become heat in the brakes, it converts some of that energy into electricity.

That electricity is stored in the Energy Store and can later be deployed to the rear wheels.

Under the 2026 regulations, the MGU-K can provide up to 350 kilowatts of electrical power. That is approximately 469 horsepower, although it should not be described as an extra 469 horsepower permanently added to the engine.

Electrical deployment changes around the lap and reduces under particular high-speed conditions. Overtake Mode allows an eligible following driver to retain more electrical deployment at high speed.

The Energy Store and Control Electronics

The Energy Store is the high-voltage battery used by the hybrid system.

It receives energy recovered by the MGU-K and supplies that energy when electrical power is deployed. The amount of usable stored energy and the amount that can be recovered are limited by the regulations.

Control electronics manage the transfer of electrical power between the Energy Store, MGU-K and other parts of the power unit.

This process must happen accurately and safely while the car is travelling at racing speed. Temperature, battery charge and planned deployment all influence how teams use the electrical system during a lap.

Drivers can select certain settings from the steering wheel, but much of the system’s operation is managed through the car’s electronics within the permitted regulations.

The Turbocharger

The turbocharger uses exhaust-gas energy to compress the air entering the engine.

More compressed air allows the engine to produce more power, but the turbo must operate under extreme temperatures and rotational speeds.

Earlier F1 power units connected the turbocharger to an MGU-H, which could recover exhaust energy and help control turbo response. The MGU-H was removed for 2026, so it should no longer appear in explanations of the current F1 power unit.

The turbocharger remains, but the way it is integrated into the hybrid system has changed.

Sustainable Fuel

The 2026 power units use advanced sustainable fuel meeting the specifications set by the FIA.

The fuel is designed to avoid relying on new fossil carbon. Its carbon can instead come from sustainable sources such as captured carbon, municipal waste or non-food biological material, depending on the approved production route.

The cars still contain internal combustion engines. Sustainable fuel does not make them electric cars, but it changes the origin of the carbon used by those engines.

Fuel remains tightly controlled. Teams cannot simply produce an unrestricted high-performance mixture; it must comply with detailed chemical and sustainability requirements.

Aerodynamics: Managing the Air

Aerodynamics determine how air moves around, over and underneath the car.

The two terms new fans hear most often are:

• Downforce: aerodynamic force pushing the car towards the track, increasing grip.
• Drag: air resistance opposing the car’s movement, reducing straight-line speed.

Teams want high downforce in corners and low drag on straights. The difficulty is that producing more downforce often creates more drag.

Much of F1 car design involves finding the best compromise between the two.

The Front Wing

The front wing is the first major aerodynamic surface to meet the airflow.

It creates downforce over the front axle and guides air towards other areas of the car. This makes it important not only for front-end grip but for the performance of the floor, bodywork and rear wing.

Small changes to its angle or shape can affect:

• How sharply the car turns into a corner.
• The balance between the front and rear tyres.
• The airflow travelling around the wheels.
• The performance of aerodynamic components further back.

From 2026, designated front-wing profiles form part of F1’s active-aero system. They can move between Corner Mode and Straight Mode when the system is enabled.

The Rear Wing

The rear wing generates downforce over the back of the car, helping the rear tyres remain stable through corners.

A larger or more aggressive rear-wing configuration generally produces more downforce but also creates additional drag. Teams therefore use different aerodynamic specifications for different circuits.

Monaco requires high downforce because of its slow corners and short straights. Monza places greater emphasis on reducing drag because so much of the lap is spent at high speed.

The 2026 rear-wing flap also forms part of the active-aero system.

Active Aero: Corner Mode and Straight Mode

The 2026 cars use moveable elements on both the front and rear wings.

These elements operate in two principal configurations:

• Corner Mode prioritises the downforce and balance needed through corners.
• Straight Mode reduces drag in FIA-defined activation zones.

When the system is enabled, the driver can command the permitted wing elements to change position.

Active aero is not the same as Overtake Mode.

Active aero changes the position of the wings and can be available regardless of the gap to another car. Overtake Mode changes electrical deployment and, during a race or Sprint, depends on the driver meeting the FIA’s eligibility conditions.

The systems may operate on the same straight, but one does not activate the other.

The Floor and Diffuser

A large proportion of an F1 car’s aerodynamic performance is produced underneath it.

Air travels through the shaped area below the car, where pressure differences create downforce. At the rear, the diffuser helps the airflow expand and leave the underside in a controlled way.

The floor is valuable because it can generate downforce without relying entirely on large external wings. However, its performance is highly sensitive to the car’s ride height and attitude.

If the car moves too much, runs too high or strikes the track surface, the airflow underneath can become less effective. This is one reason suspension setup and aerodynamic performance are so closely connected.

The plank underneath the car also limits how low teams can run it. Excessive wear can result in disqualification because it indicates that the car has been operating below the permitted limits.

The Bodywork and Sidepods

The bodywork covers and connects the car’s internal systems while controlling airflow towards the rear.

The sidepods contain cooling inlets and help direct air around the car. Inside them are radiators and other cooling equipment for the power unit and associated systems.

Teams must balance cooling and aerodynamic performance.

Larger openings allow more cooling air to enter, but they can increase drag and disrupt external airflow. Smaller openings may improve aerodynamic efficiency but create a risk of overheating.

This is why teams sometimes change cooling bodywork between hot and cool events.

The Gearbox and Transmission

F1 cars use an eight-speed semi-automatic sequential gearbox, plus reverse.

The driver changes gear using paddles behind the steering wheel. Each individual change must be initiated by the driver, although electronic and hydraulic systems carry out the physical shift.

Automatic gear changes are prohibited.

The gearbox transfers power from the power unit to the rear wheels through the differential and driveshafts. It also acts as a structural part of the car, with other components mounted around it.

The former claim that every gearbox must simply last six races is outdated. Modern gearbox components are governed by homologation, technical and sporting requirements rather than that old single rule.

Gear ratios are also regulated. Teams nominate their set of eight forward ratios, with only limited opportunities to change that specification.

The Differential

The differential allows the two rear wheels to rotate at different speeds.

This is essential because the outside wheel travels further than the inside wheel when the car turns. Locking both rear wheels to exactly the same speed would make the car difficult to rotate and could increase tyre slip.

Drivers can adjust permitted differential settings from the steering wheel. These settings influence how the car behaves when entering, travelling through and exiting a corner.

A more locked differential can improve traction in some conditions but may make the car less willing to turn. A more open setting can help rotation but may reduce stability or traction.

The Suspension

The suspension connects the wheels to the chassis while controlling how the car responds to bumps, braking, acceleration and cornering forces.

Its job is not simply to provide a comfortable ride. It must:

• Keep the tyres in effective contact with the track.
• Control how the car moves under braking and acceleration.
• Maintain a stable aerodynamic platform.
• Absorb kerbs and surface changes.
• Give the driver predictable handling.

F1 cars use complex arrangements of wishbones, pushrods or pullrods, springs, dampers and other permitted mechanical components.

Active suspension is not permitted. Teams instead achieve the required behaviour through carefully designed passive mechanical systems and detailed setup work.

A smooth circuit may suit a stiff, low car. A bumpy street circuit may require more compliance and a higher ride height.

The Steering System

The steering system connects the driver’s inputs to the front wheels.

F1 cars use power-assisted steering because the aerodynamic loads and tyre grip would otherwise make the wheel extremely difficult to turn.

The steering wheel itself is removable and contains:

• Gearshift paddles.
• Clutch controls.
• Rotary switches and buttons.
• A radio control.
• Brake-balance adjustments.
• Differential settings.
• Pit-lane speed-limiter control.
• Active-aero and electrical-deployment controls.
• A digital information display.

The exact layout differs between teams and drivers. Controls are positioned so the driver can operate them while wearing gloves and experiencing high cornering forces.

The Brakes

F1 cars use carbon-carbon brake discs and pads.

These materials can operate at extremely high temperatures while providing the stopping power required to slow the car from high speed over a short distance.

The braking system is split into front and rear circuits. At the rear, braking must also work with the MGU-K because part of the car’s deceleration comes from electrical-energy recovery.

A brake-by-wire system helps coordinate the conventional rear brakes with the changing amount of braking produced by regeneration.

Brake ducts guide cooling air towards the discs, callipers and surrounding components. Teams must provide enough cooling to control temperatures without creating unnecessary aerodynamic losses.

Too little cooling can cause overheating. Too much can prevent the brakes from remaining in their ideal operating range.

The Wheels and Tyres

The tyres are the car’s only contact with the circuit, making them fundamental to acceleration, braking and cornering.

F1 cars use 18-inch wheel rims. In dry conditions they run smooth slick tyres, while intermediate and wet tyres have grooves designed to clear water.

Tyre performance depends on:

• Compound.
• Temperature.
• Pressure.
• Track surface.
• Fuel load.
• Driving style.
• Car setup.
• The number of laps completed.

A softer compound generally provides more grip but may degrade more quickly. A harder compound normally lasts longer but may be more difficult to warm up or provide less peak grip.

Teams do not choose from every available dry compound during a Grand Prix. Pirelli selects the compounds made available for each event.

The Minimum Mass

The current regulations express minimum mass as:

• 724kg plus the nominal tyre mass in most sessions.
• 726kg plus the nominal tyre mass during qualifying and Sprint Qualifying.

The qualifying figure is slightly higher because it accounts for requirements applying in those sessions.

A car must not fall below the relevant minimum mass at any point when it is checked. Teams may use securely mounted ballast to reach the required figure and improve weight distribution.

Running lighter would improve acceleration, braking and cornering, which is why the minimum is strictly enforced.

Power-Unit Component Limits

Drivers cannot use unlimited power-unit components during a season.

Under the standard 2026 allocation, each driver may use no more than:

• Three internal combustion engines.
• Three turbochargers.
• Three exhaust sets.
• Two Energy Stores.
• Two sets of power-unit control electronics.
• Two MGU-K units.
• Five of each defined power-unit ancillary component.

Specific exceptions can apply. For example, an additional unit may be available under the conditions covering a power-unit manufacturer entering its first supply year.

Using more than the permitted allocation can result in grid penalties.

These limits encourage reliability and control costs. A power unit designed only to last one weekend could be operated more aggressively than one expected to cover several events.

How Everything Works Together

The individual components of an F1 car cannot be developed in isolation.

The power unit provides acceleration, but its performance depends on cooling, electrical deployment and traction from the rear tyres.

The wings and floor create downforce, but they need the suspension to keep the car in a stable operating window.

The brakes slow the car while the MGU-K recovers energy. That recovery changes the rear-braking demand, which must remain predictable for the driver.

Tyre grip influences every part of the car’s performance. Without the correct tyre temperature, even an aerodynamically efficient and powerful car will struggle.

This interdependence is what makes F1 development so complicated. A new component can improve one area while unintentionally making another worse.

The fastest car is rarely the one with a single exceptional part. It is normally the car that combines its power unit, aerodynamics, suspension, tyres and driver into the most effective complete package.

Essential Glossary

Active aero — Moveable front- and rear-wing elements that switch between Corner Mode and Straight Mode.

Chassis — The central carbon-fibre structure around which the car is built.

Diffuser — The shaped rear section of the floor that helps control air leaving the underside of the car.

Downforce — Aerodynamic force pressing the car towards the track and increasing grip.

Drag — Air resistance opposing the car’s movement.

Energy Store — The battery that holds electrical energy for the hybrid system.

Gearbox — The eight-speed transmission transferring power to the rear wheels.

Ground effect — Downforce created through the pressure and airflow underneath the car.

MGU-K — The motor-generator that recovers kinetic energy and provides electrical power through the drivetrain.

Monocoque — Another term commonly used for the car’s central survival-cell structure.

Overtake Mode — A system allowing an eligible following driver to retain more electrical deployment at high speed.

Power unit — The complete propulsion system, including the engine, turbocharger, MGU-K, Energy Store and control electronics.

Survival cell — The crash-tested central structure protecting the driver.

Quick Recap

• The survival cell forms the central structure and protects the driver.
• The Halo and impact structures provide additional crash protection.
• The power unit combines a turbocharged 1.6-litre V6 with electrical power.
• The 2026 car has an MGU-K but no MGU-H.
• The MGU-K can deploy up to 350kW of electrical power.
• Active aero changes elements of both the front and rear wings.
• Overtake Mode changes electrical deployment and is a separate system.
• The floor and diffuser generate a substantial proportion of the car’s downforce.
• The gearbox has eight forward ratios and driver-operated paddle shifts.
• Carbon-carbon brakes work alongside electrical-energy recovery.
• The old 798kg minimum-mass figure no longer applies.
• Power-unit components are limited across the season.

Frequently Asked Questions

What are the main parts of an F1 car?

The principal parts include the survival cell, power unit, front and rear wings, floor, diffuser, gearbox, suspension, brakes, steering system, wheels and tyres. Each category contains many smaller components.

Does a 2026 F1 car still have DRS?

No. DRS was used until the end of 2025. The 2026 cars use active front- and rear-wing elements, while Overtake Mode provides an electrical-deployment advantage to an eligible following driver.

Does a 2026 F1 car have an MGU-H?

No. The MGU-H was removed under the 2026 power-unit regulations. The MGU-K remains and plays a much larger role in the electrical system.

How powerful is the 2026 MGU-K?

Its absolute electrical DC power is limited to 350kW, approximately 469 horsepower. Actual deployment changes according to speed, energy availability and the applicable operating conditions.

How much does a 2026 F1 car weigh?

The regulations set a minimum of 724kg plus the nominal tyre mass in most sessions. In qualifying and Sprint Qualifying, it is 726kg plus the nominal tyre mass. This is a regulatory minimum rather than the exact operating weight of every car at every moment.

How many gears does an F1 car have?

An F1 car has eight forward gear ratios and a reverse gear. The driver initiates changes using paddles behind the steering wheel.

Are F1 cars automatic?

No. The physical gear change is carried out by the car’s systems, but each individual shift must be initiated by the driver. Fully automatic gear changes are prohibited.

What is the difference between active aero and Overtake Mode?

Active aero changes the position of permitted front- and rear-wing elements. Overtake Mode changes the electrical-deployment limits available to an eligible driver. They are separate systems.

Why is the floor so important?

The floor produces downforce by controlling the pressure and speed of the air travelling beneath the car. It can generate aerodynamic load efficiently, but its performance depends heavily on ride height and the car’s movement.

Why do teams receive grid penalties for changing parts?

Drivers have seasonal limits for specified power-unit components. Grid penalties discourage teams from gaining a performance or reliability advantage by using an unlimited supply of fresh parts.

Ready to Go Deeper?

An F1 car is best understood as one complete system rather than a collection of independent parts.

A wing changes airflow towards the floor. Suspension movement changes how that floor performs. Tyre grip changes how much power and braking the driver can use. Electrical recovery changes what the rear brakes need to do.

That is why Formula 1 development is a constant balancing act. Improving one component only matters if it makes the complete car faster, more predictable and more reliable.