In terms of diffs, they are now heavily regulated what you can change on a rally.
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Only thing that helps the most is testing, and testing. Relevant surfaces. Then you get to learn much of the carīs behaviour. Did I hear Huyndai wasnīt doing that in a proper way?
Someone can correct me but can they even do a proper test when it is so restricted? As I understand, whit the current regulations, each manufacturer is limited to 21 days of testing per year. And these can be distributed across its driver line-up as it sees fit. But this means that all your drivers can't even test for all the rallies, if you want to have proper one day test. So you are testing for rally but you would also like to have some development tests.
Yes there is a permanent test site but it is usually one surface type.
Main problem with Hyundai is still the late development in 2021. It seems some main errors can't be fixed and they are trying to work around them.
And dont forget that Thierry won WDC with this car last year.
Neuville won it, mainly because he took most of every event. He had many issues, but still take everthing he could. Also Rovanpera play a huge role in it not competing full time, Ogier crashing like crazy and Tanak having too much unlucky moments. This year it's similar with Evans. But Evans doesn't have so much issues, he is just maybe too careful or sometimes too slow, but he is the most consistent guy at the moment and it shows. And the award for always second lies on him at the moment, so he need to break that down.
Now Tanak says he was never able to test the 2025-spec car on tarmac, hence him using the older Monte-spec car !
https://rallyjournal.com/ott-tanak-m...e-only-option/
Yes, it was known before the rally, but I think only in the Estonian media. It’s strange that international outlets didn’t pick it up or ask about it. I’m not sure if anyone mentioned it in the forum. He said that something happened to the car before the test, and they weren’t able to fix it, so he played it safe and chose the car whose characteristics and performance were already familiar. And as they had both car available during the testing he tested 2024 version.
After the rally, the Estonian media asked him which car they would use in Japan, and he said that they would discuss it with the team. They can use some data and a base setup, but they need to decide carefully since they can’t test for Japan in Europe. However, it now seems confirmed that they will use the 2024 spec.
Given he was the top Hyundai it seems he had the better car anyway.
But as I've said before, things are never straightforward with Tanak and Hyundai. Or at least it seems like that with the way information comes out via him, the Team and local / international rally outlets.
In this case, first it was Hyundai saying he had a new car and engine but avoiding a penalty, then that he chose the 24 Car after a test, then that there was a problem with the 25 Car which was unavailable for the rally, and then that he chose the 24 car anyway as it was a known entity from Monte.
Tanak probably had the best hyundai could give him. A new engine, and no stupid limitations like linked diffs.
My photogallery from CER 2025:
https://eu.zonerama.com/TomasR/Album/14076761