Well the heat caused the fuel pressure issue with the Hyundai's acc to Loeb. And the Fords also overheated a bit causing drivers to move off quickly at stage ends.
But the cars are generally quite fragile - only the Big 3 and Latvala have had no problems today..
30 degrees is not something extreme.For decades were run Acropolis and Cyprus with much more heat, without such problems.
So it's mean that Hyundai alredy do a "car name" slot swap before Paraguay.
If Tanak in Chile run a 'Fourmaux' Paraguay engine and 2nd engine to this slot was Sweden Tanak engine it's mean than...
No because the rule only applies in the manufacturers championship where they can only enter 3 per rally.
Rally Chile Biobio 2025