The new regulations introduced by FIA for the world rally championship are primarily based on sustainability and eco-friendly rallying. These new regulations also aspire to attract new manufacturers into the sport. The FIA has also decided to use a hundred percent sustainable fuels to power the cars.

Regulations of the World Rally Championship

The world championship cars are now re-named Rally1 cars. The earlier powered 1.6-litre direct-injection four-cylinder engine has changed with an obligatory 100 kWh hybrid unit.


HYBRID SYSTEM The hybrid system provides a power boost to the racers and is required to generate thirty kilojoules’ of energy between successive augmentation. The resurgence process of the power boost takes place with the braking action during the different stages of the rally.
FIA has also made it mandatory to navigate through some parts of the road and around event service parks in full electric mode.


BATTERY The car delivers a range of twenty kilometers in full electric mode. The 3.9-kilowatt battery pack capable of generating up to 750 volts can be fully charged within thirty minutes.

Also Read: Audi’s future plan in the Dakar Rally


CHASSIS
The production car-based chassis is revitalized to a more unassailable spaceframe chassis. The new frame is formidable and safer than its predecessor. As indicated by the FIA’s tests and examination, side effects showed a 51% decrease in interruption. The rooftop segment can assimilate energy up to 115% better than a past WRC body shell supported by a customary roll confine. A front-facing sway against an unbending deterrent brought about 70% less interruption in the bulkhead region, securing the group’s feet and legs.


TYERS AND BRAKES
The liquid-cooled braking system is superseded by air-cooled conventional braking. Air-cooled 300m brake discs will be used on tarmac rallies, with 370mm versions fitted for gravel events. To cope-up with the extra weight due to the hybrid system Pirelli has re-constructed the tire structure.


AERODYNAMICS
The new guidelines have successfully annulled extra streamlined gadgets, for example, wings and splitters being added to the bodywork outside of the front splitter and back wing. The total downforce made and its impact on the vehicle has been diminished by roughly 15% contrasted with the past age of vehicle.


HANDLING
The new cars have simple front and rear mechanical limited-slip differentials offering a fixed 50:50 torque split between the front and rear wheels instead of center differentials used to fine-tune handling. The cars are also seventy kilograms heavier than their previous generation. The total weight now adds up to 1260 kilograms.

COMPARISON TABLE(TECHNICAL SPECS)

2021 VEHICLE SPECIFICATIONS (TOYOTA GAZOO)

Engine typeIn-line 4-cylinder turbo, direct injection
Engine displacement1600 cc
Maximum powerOver 380 PS
Maximum torqueOver 425 Nm
Bore / stroke83.8 mm / 72.5 mm
Air restrictor36 mm, following FIA regulations
Gearbox6 Speed hydraulic shift
Gearbox final drive4 wheel drive, 2 x mechanical differentials, active center differential with torque split options.
ClutchDouble Plate Sintered Clutch
Chassis/suspension front/rearMacpherson
Suspension travelClassified
SteeringHydraulic Rack and Pinion
Braking systemGravel 300 mm air and liquid cooled, Tarmac 370 mm air and liquid cooled
Length4085 mm (inc. aero device)
Width1875 mm
HeightAdjustable
Track widthAdjustable
Wheelbase2511 mm
Minimum weight1190 kg
AccelerationClassified
Top speed201 kph (Ratio Specific)

2022 VEHICLE SPECIFICATIONS (TOYOTA GAZOO)

Engine
Engine typeIn-line 4-cylinder turbo, direct injection, Hybrid Power Unit
Engine displacement1,600 cc
Maximum powerOver 500 PS
Maximum torqueOver 500 Nm
Bore / stroke83.8 mm / 72.5 mm
Air restrictor36 mm, following FIA regulations
Transmission
Gearbox5 speed mechanical shift
Gearbox final drive4 wheel drive, 2 x mechanical differentials
ClutchDouble Plate Sintered Clutch
Chassis / suspension
Front / rearMacpherson
Suspension travelDamper travel 270mm
SteeringHydraulic Rack and Pinion
Braking systemGravel 300 mm, Tarmac 370 mm
Dimension and weight
Length / width / height4,225 mm (incl. aero device) / 1,875 mm / adjustable
Track widthAdjustable
Wheelbase2,630 mm
Minimum weight1,260 kg
Performance
Top speed201 kph (Ratio Specific)