Toyota’s WRC27 Project Enters a Critical Phase

Toyota’s preparations for the 2027 World Rally Championship have reached a decisive stage, and Oliver Solberg is emerging as one of the drivers whose feedback could have a direct influence on the final direction of the manufacturer’s next-generation rally car.

The Norwegian driver has already been given an opportunity to test Toyota’s WRC27 prototype, joining a development programme that has accumulated thousands of kilometres across different surfaces and conditions. What makes the latest testing particularly important is that Toyota is moving beyond initial prototype running and increasingly bringing its regular WRC drivers into the development process.

The change is significant because the WRC27 regulations represent one of the biggest technical resets in modern WRC history.

Unlike the current Rally1 generation, the new cars will operate under a substantially different technical philosophy. The FIA has designed the regulations around a cost-controlled platform, a tubular safety structure, simplified aerodynamics, four-wheel drive and greater use of components derived from Rally2 machinery. The target for the initial powertrain is a sustainably fuelled 1.6-litre turbocharged engine producing around 290 horsepower.

For Toyota, however, the challenge is not simply to build a car that complies with those rules.

The real challenge is to build a machine capable of translating Toyota’s current WRC experience into a completely different technical package.

And that is where Solberg’s feedback becomes particularly interesting.

Oliver Solberg Steps Into Toyota’s New Development World

Toyota’s WRC27 prototype has been under development for considerably longer than the public first realised.

The manufacturer began testing its new-generation car before the 2026 season, initially relying heavily on dedicated test driver Juho Hänninen. The early philosophy was deliberate: Toyota wanted neutral feedback before exposing the prototype to the full-time Rally1 drivers.

That approach made sense.

A current Rally1 car represents years of development, refinement and optimisation. A WRC27 prototype, meanwhile, is designed around a new set of restrictions and compromises.

DirtFish reported that Oliver Solberg and Sami Pajari were among the factory drivers who first drove the prototype during Toyota’s Portugal testing programme in March. Elfyn Evans and Takamoto Katsuta had also been involved in the testing process.

The importance of Solberg’s involvement goes beyond simply putting another driver behind the wheel.

He has spent the 2026 season driving Toyota’s current GR Yaris Rally1, giving him an unusually direct reference point between the outgoing generation and the machine being prepared for 2027.

That creates a valuable comparison.

The question Toyota engineers need answered is not simply whether the new car feels faster.

It is whether the new car feels predictable, efficient, controllable and competitive within the limitations imposed by the new regulations.

The First Kilometers Exposed the Biggest Difference

The exact wording of the quote, “I could feel the difference right from the very first kilometers in the WRC27,” has not been independently confirmed in the sources reviewed for this article.

However, the underlying issue described by Toyota’s development team is very real.

When a driver moves directly from a modern Rally1 car into the WRC27 prototype, the difference is immediately noticeable.

Toyota technical director Tom Fowler explained that this transition creates a difficult feedback problem for both engineers and drivers.

The current Rally1 machine benefits from years of development, sophisticated systems and a considerably higher technical specification. The WRC27 car, by contrast, is built around a more accessible and cost-controlled philosophy heavily influenced by Rally2 technology.

That means a driver may report that something feels different without necessarily being able to identify whether the issue comes from the new car itself or simply from the enormous gap between the two generations.

For Toyota, separating those two factors is one of the central challenges of the development programme.

The manufacturer therefore used test drivers extensively before increasing the involvement of its regular WRC stars.

Now, however, that balance is changing.

Toyota Has Already Completed Thousands of Kilometers

The scale of the development programme has also grown considerably.

By August 2026, Toyota had completed more than 5,000 kilometres of testing with its WRC27 car during the year, according to Toyota technical director Tom Fowler as reported by DirtFish. Ott Tänak had completed a significant portion of that mileage, while Toyota’s regular Rally1 drivers were expected to increase their involvement as the 2026 championship moved toward its conclusion.

That mileage has not been accumulated on a single surface.

Toyota has tested the prototype across asphalt, gravel and other demanding conditions, allowing engineers to examine different areas of the car before homologation and competition.

Earlier reporting also indicated that Toyota had already exceeded 2,000 kilometres during an earlier stage of the programme, with testing involving Hänninen and Toyota’s current drivers.

The progression from early prototype running to extensive multi-surface testing shows how quickly the programme has developed.

The car seen in the first public tests was not necessarily the final specification.

Fowler described the early machine as an original prototype, with Toyota using rougher and harder gravel roads to investigate reliability and specification.

That distinction matters.

The WRC27 Toyota being evaluated during 2026 should not automatically be considered identical to the car that will line up at the opening round of the 2027 championship.

The Suspension Revolution Is One of Toyota’s Biggest Challenges

One of the most important changes under the WRC27 regulations is the move toward a double-wishbone suspension configuration.

The FIA regulations establish a technical framework in which suspension, braking and steering systems are closely connected to the new cost-control philosophy. The cars will also use a tubular safety cell and a defined vehicle footprint that gives constructors considerable freedom over exterior design.

For Toyota, that creates an engineering challenge.

The manufacturer has spent years developing a Rally1 platform based on a very different technical philosophy. Suddenly, the engineers must extract competitive performance from a package that is much closer in concept to Rally2.

That does not simply mean making the current car smaller or slower.

It means rethinking the relationship between chassis balance, suspension movement, grip, braking and aerodynamic performance.

And that is where driver feedback becomes extremely important.

A professional driver can identify characteristics that are difficult to capture through raw data alone.

Solberg’s role therefore becomes more than a simple test assignment.

His experience in the current Toyota Rally1 car gives engineers another reference point for understanding exactly where the WRC27 prototype gains, loses or behaves differently.

The New Toyota Is Not Designed to Be a Current Rally1 Clone

The temptation for fans is to compare every prototype detail with the current GR Yaris Rally1.

That comparison can be misleading.

The FIA has intentionally designed WRC27 to be a fundamentally different platform.

The regulations target a €345,000 cost cap, representing a reduction of more than 50 percent compared with the outgoing generation. The new rules also allow manufacturers and independent tuners to compete under the same broad Constructor framework.

The result is a car designed to make the top level of rallying more accessible.

The initial WRC27 package is expected to use a 1.6-litre turbocharged internal combustion engine, four-wheel drive and a five-speed gearbox, with approximately 290 horsepower targeted by the FIA concept.

That means Toyota cannot simply take everything it learned from the current Rally1 car and reproduce it unchanged.

Some technology is too expensive.

Some components are no longer permitted.

Some aerodynamic solutions have been simplified.

The engineering philosophy has changed.

That is why the feedback from drivers such as Solberg is so important.

Why Oliver Solberg Could Become a Key Reference Driver

Solberg occupies an interesting position inside Toyota’s 2027 development programme.

He is young enough to represent the next generation of WRC drivers, yet experienced enough to understand the difference between Rally2 machinery and the latest Rally1 technology.

His career has also given him experience with different generations of rally cars, making his impressions potentially useful when engineers are attempting to define what the new Toyota should feel like.

The development process is not about making the car comfortable for one driver.

Toyota has explicitly stressed the importance of receiving feedback from multiple drivers rather than developing a machine around a single individual’s preferences.

Fowler previously explained that the team needs to ensure its drivers are broadly satisfied with the direction of the car because developing entirely around one driver does not create the ideal team solution.

That makes the next stage of testing particularly significant.

Solberg’s feedback will have to be compared with the impressions of Evans, Pajari, Katsuta and other drivers involved in the programme.

The common themes will be more important than any individual preference.

Ott Tänak Has Also Played a Major Role

One of the more intriguing developments has been the involvement of Ott Tänak.

Toyota has used Tänak extensively during the WRC27 testing programme, and reports indicated that he had accumulated a substantial amount of the prototype’s mileage.

His involvement gives Toyota another highly experienced reference point.

Tänak has extensive knowledge of different Rally1 platforms and has competed at the highest level for years. His feedback therefore gives Toyota another perspective on how the new machine behaves compared with the current generation.

According to reporting from Autosport, Toyota had already conducted more than 2,000 kilometres of testing across asphalt, snow and gravel before Tänak’s involvement became a major part of the programme.

By August, the overall testing mileage had passed 5,000 kilometres.

The scale of that programme demonstrates that Toyota is not approaching WRC27 as a minor evolution.

The manufacturer is treating it as a complete reset.

Toyota Faces Another Problem Nobody Can Solve With Horsepower

There is another issue surrounding the 2027 car that could prove just as important as the engineering itself.

That issue is road order.

The WRC27 regulations are designed to bring the performance of different categories much closer together. Toyota therefore faces the possibility that the starting position could have an unusually large effect on the outcome of rallies.

Toyota technical director Tom Fowler has already highlighted the problem, pointing out that road position can create a performance difference comparable to a huge horsepower advantage on gravel.

This becomes especially complicated because the 2027 field is expected to contain WRC27 cars alongside upgraded Rally2 machinery.

The FIA has already approved a Rally2-WRC-Kit that allows eligible Rally2 cars to compete alongside WRC27 cars during the 2027 and 2028 seasons. The stated purpose is to improve aerodynamic parity between the two categories.

In other words, Toyota is not developing its new car in isolation.

The engineers must consider how the machine will behave against several different technical concepts.

The 2027 Toyota Will Enter a Completely Different WRC

The broader significance of the WRC27 project goes beyond Toyota.

The FIA has designed the new regulations to open the championship’s top category to both traditional manufacturers and independent tuners.

The framework allows bodywork to take many different forms, provided it remains within the defined technical volume. The rules also allow future flexibility in powertrain technology, with alternative solutions potentially becoming possible during the regulation cycle.

That creates an entirely different competitive environment.

Toyota has been one of the first major manufacturers to commit heavily to developing a purpose-built WRC27 car.

Other constructor projects are also emerging.

Project Rally One, for example, has already completed significant testing of its own WRC27 machine and is targeting FIA homologation.

The arrival of new constructors means Toyota will not simply be racing against the same technical philosophy it has faced during the Rally1 era.

The competitive landscape itself is changing.

Why Solberg’s Feedback Matters Before 2027

The most important question surrounding Oliver Solberg’s WRC27 testing is therefore not whether he immediately set a record time.

It is what he and the other Toyota drivers can tell the engineers about the car’s behaviour.

The development process is about identifying weaknesses while there is still enough time to correct them.

Suspension behaviour can be modified.

Chassis balance can be refined.

Weight distribution can be adjusted within the regulations.

Aerodynamic details can evolve.

Reliability issues can be addressed.

And the driver interface can be improved.

That is precisely why Toyota has spent thousands of kilometres testing before the 2027 season begins.

The first version of a prototype is not supposed to be perfect.

It is supposed to expose problems.

The real measure of the programme will be how many of those problems Toyota can eliminate before homologation.

The Final Question: What Will Toyota Bring to Monte Carlo?

With the 2027 season approaching, the WRC27 prototype is moving from an experimental project toward a competition machine.

Toyota’s development mileage is growing.

Its regular drivers are becoming more involved.

The engineering team is gathering increasingly detailed feedback.

And the pressure to make the right decisions is rising.

For Oliver Solberg, this creates an unusual opportunity.

He is not simply preparing for another WRC season.

He is helping Toyota understand what its next generation of rally car needs to feel like from behind the wheel.

The exact claim that Solberg described the difference as being obvious “from the very first kilometers” remains unverified in the available reporting.

But the broader story is supported by the development programme itself: Toyota has deliberately placed its current Rally1 drivers into the WRC27 prototype because their feedback is now becoming increasingly valuable.

The car is changing.

The regulations are changing.

The competitive structure is changing.

And Toyota’s next major challenge is no longer simply to make a fast rally car.

It is to make the right WRC27 rally car.

With thousands of kilometres already completed and more testing planned before the 2027 season, every lap driven by Solberg, Tänak, Evans, Pajari and Katsuta could influence the final specification.

The first true answer will come when the prototype stops being a test machine and finally becomes Toyota’s 2027 weapon on the stages.

Until then, the most revealing data may continue to come from the drivers who have experienced both worlds — the highly developed Rally1 era and the radically different WRC27 future.