WRC mainclass from 2027

[WRCStan]

So M-Sport as it was wouldn't make an M-Sport car without co-operation of Ford or anyone other.

Why not? Group A is gone. Reference cars are gone (bespoke styles permitted). All M-Sport need is a production engine. I don't know if the volume was made public or not, but given M-Sport provide engines to another series - they should be OK I think. Besides in August, FIA said manufacturers with another requirement are welcome to explain it.

Wait does this "Constructors" thing mean that Manufacturers and Tuners will be on a same level actually? Because last info was that only manufacturers can design own cars, and tuners will be only able to change a bodypanels of manufacturer's cars.

Inside the sport, yes same level, and it makes sense:

This introduces a formal definition for Constructors – bringing the Manufacturer and Tuner entrants under a singular umbrella as entrants in FIA World Rally Championship.

Outside the sport and from a road-legal POV, it makes no sense still:

A Constructor is the entity responsible for designing and building the WRC27-type car, preparing and submitting the vehicle for FIA homologation, and commercialising the car and its associated components.

I read this as 'manufacturer' supplies a 'tuner':

Where a Constructor supplies a second Constructor for partial homologation, the minimum production of the base car or car variant may be reduced relative to the supply to the second Constructor.

As I understand these things from my own experience and understanding of what will happen, a 'bodywork tuner car' will still legally be a 'manufacturer car'. Because if the 'manufacturer' sells a rolling chassis without paperwork (which it wouldn't), the 'bodywork tuner' is de facto the 'manufacturer' upon registration under their own name. So, a bodywork tuner will be driving an identical car on paper, only it looks different. (Kind of like how a Vauxhall Astra can be an estate or hatchback - it's a poor analogy). Last time out, the FIA said tuners will have to align with the manufacturer for all parts, so this makes sense to itself.

But upon FIA homologation, it looks like what is a legal 'manufacturer car' will become a 'tuner car' within FIA walls because the tuner homologated it.

They could do with getting somebody who wrote the rules to explain it rather than passing post it notes to the press office to interpret.