WRC Rally Cars Explained: Inside a 2026 Rally1 Machine

WRC rally cars in 2026 are Rally1 machines: four-wheel-drive, tube-framed prototypes wearing the body shape of a road car, powered by a 1.6-litre turbocharged four-cylinder engine that makes a little over 370 PS. Only three models contest the top class this year, the Toyota GR Yaris Rally1, the Hyundai i20 N Rally1 and the M-Sport Ford Puma Rally1, and 2026 is scheduled to be the final season of this rulebook.

Rally1 arrived in 2022 and replaced the World Rally Car formula that had run in the 1.6-litre era since 2011. The biggest change was underneath the bodywork. Instead of starting from a production shell, teams can build a tubular space frame, and every car is built around a common safety cell that was designed centrally in partnership with the FIA. The car only has to look like the road model it is named after; it does not need Group A or Group N homologation.

The engine is the familiar 1.6-litre global race engine with direct injection. On the 2026 GR Yaris, Toyota quotes a bore and stroke of 83.8 mm by 72.5 mm, more than 370 PS and more than 425 Nm of torque. Power is policed by an air restrictor in front of the turbocharger, and that restrictor shrank from 36 mm to 35 mm at the start of 2025. The fuel is 100 percent sustainable, a requirement the FIA kept in place when it changed the rest of the package.

That change is the part most fans remember. From 2022 to 2024 every Rally1 car carried a plug-in hybrid unit supplied by Compact Dynamics, a 750-volt system that added up to 100 kW of boost and let crews drive the road sections between stages on electric power alone. On 15 November 2024 the World Motor Sport Council approved removing it for 2025, describing the move as a pause. To keep the cars about as quick, the minimum weight fell from 1,260 kg to 1,180 kg while the smaller restrictor took some power away, so the power-to-weight ratio stayed roughly equivalent to 2024. Teams had found the hybrid units expensive to repair after crashes, and the FIA argued that lighter cars would be easier to drive and cheaper to run.

The rest of the drivetrain was deliberately simplified when Rally1 was introduced. Gearboxes went from six speeds to five, paddle shifters were replaced by a mechanical lever, and the active centre differential was removed altogether. What remains is four-wheel drive with mechanical differentials at the front and rear. That puts more of the job back in the driver's hands: there is no computer shuffling torque between the axles through a hairpin.

Suspension is MacPherson strut at both ends, with around 270 mm of damper travel on the Toyota so the car can absorb jumps and ruts on gravel. The set-up changes completely between surfaces. On gravel and snow the cars run 15-inch wheels with 300 mm brake discs, while on asphalt they switch to 18-inch wheels and 370 mm discs. Hankook has supplied the tyres since 2025, taking over from Pirelli. Aerodynamics, which had grown into elaborate wings and diffusers on the previous generation, were cut back to reduce both cost and performance.

Numbers only tell part of the story. A Rally1 car is geared for acceleration rather than top speed: Toyota lists a ratio-dependent top speed of 201 km/h, which sounds modest until you remember it is reached on narrow roads lined with trees, rocks and spectators. The real advantage over the Rally2 cars that fill most of the entry list is how hard a Rally1 car can brake, turn in and put power down on a loose surface.

What comes next is already written. From 2027 the top class moves to the WRC27 regulations, finalised by the FIA in December 2025. The new cars keep a 1.6-litre turbo engine but drop to roughly 300 horsepower, use a space-frame chassis with some Rally2 components, and must be sold ready to race under a cost cap of 345,000 euros. They will share the top class with Rally2 machinery at first, and a homologation will be valid for ten years. The aim is simple: cheaper cars that attract more constructors than the three brands that have carried Rally1 since 2022.

So if you watch a stage this season, you are watching the last run of a generation: lighter than it was two years ago, no longer hybrid, and still the benchmark for how fast a rally car can cover a loose, narrow road.