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Challenge is that in Poland there is a number of roads that is designated test roads, and most of these gets very, very rutted. So difficult to get rally conditions.
Rally Poland changes conditions...

C3 2017
Height: 1470 mm
Width: 1745mm
Wheel arch width: 65 mm pr side

Yaris (2016, I think the 2017 will be quite similar?)
Height: 1510 mm
Width: 1695 mm
Wheel arch width: 90 mm pr side...

Verticality has nothing to do with frontal area, that is, as you say your selves, in an effort to direct air flow.
Moder LMP1 cars have as small a frontal area as the rules will allow.
If you ask...

That is a very valid question!

Not only in Monte, but also in Sweden.

Ford definetly have potential to eat som snow/clog up the air intake.
Longer/bigger splitter, together with canards, will...

Its off cource important to have rotating inertia low to keep power loss at minimum, but I only wrote about the theory behind "bigger and stronger gears" if you like.

Anyway, Peugeots plan...

Very good explanation, but I disagree with you on one thing, and thats regarding the number of ratios.

Theoretically - yes, the "wide" power band of the 2.0 WRC cars would allow for fewer ratios....

Looking very good, especially towards the end of the film (too soft in the start). Latvala is a technically gifted test pilot, I think it was a very good choice to bring him in on this project.

Missing rear bumper doesnt need to be because of an accident.
Citroën has a very good testing methodology, and they also do things as test with missing/damarged aero, to test the handling...

Not true

There is actually quite a lot of running with gravel set up on tarmac, off course Catalunya, but also on Super Specials.
But this can well be that it was a section on a stage, and not really a focus...

Terra Alta?

Catalunya?

I really like the honeycomb crash structure on the doors of the new WRC cars. This is safety vise the weakest point on a rally car, and great to see it taken seriously!

Hyundai starting to look...

That is not correct - or a misunderstanding.

Frontal area is the nr1 factor when it comes to aerodynamics, and the most important factor when it comes to drag (or air resistance in if you will.) ...

Interesting with very different philosophies regarding the chassis in the 17 cars.
- Volkswagen and Citroën most similar, with Citroën the most extreme in regards to the ratio between longditudal...

If you systemise everything you mentioned, you would have a very good basis to make an analysis :)

Can be for safety. Interesting.

They have added piece by piece, its called development..

Citröen doing some imense work on the aerodynamics. This is test car #9, and every one of them has had changes - impressive. Now focus seems to be on front downforce and air flow around fenders.
...

Each entitled to his own opinion :)

If you compare the Group 4 Audi quattro to the first Group B Audi quattro (the long one), and then that to the first S1, etc - you will see that everything did...

If rumours are correct, 2017 WRC cars are about 1 sec pr km faster than todays cars.
That is the same difference as between todays R5 and WRC!

Those who say that this is not the new Group B -...

"launched" today, but like Hyundai its a mule car, so we´ll have to wait and see :)

As expected, the aero-development is gaining traction (pun intended.) :)

Ok.
Hayden asked me quite early after we started working together if I wanted to come to a test. I declined, because I said it was very important that we get the basic theory down first, and really...

What do you want to know dimvii?