Not a car guy but are the breaks on the Caliburn meant to be bad because the rim based cooling on the car are put on backwards?
Looks like it would be pushing cool air away from the breaks rather than onto them.
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Aren't their job to take the air out through the brake, not push it into it?
Because it all depends on airflow and how are aerodynamics of the car designed as a whole. When we would take only the cooling aspect of it, then if you run cool air from an intake (either through the front for the front wheels, or those black intake at the side for the rear wheel, as it seems that the engine gets its air and cooling from a different intake) into the wheel well, then through those brakes and out through the turbofan rim, it should have the same cooling effect as if those rims just sucked the air in and it had to escape through a different vent.
However, looking at Caliburn's setup, the (virtual) air is being sucked out from the wheel well out of the car, allowing for cool air flowing through those brakes, and because that air goes through other aerodynamic elements first, it could help in creating more downforce. It might be better to draw where the air flows through the car, but currently I have no means to do so...
The other way, the one you are proposing, might lead to overpressure building in those areas and disrupting airflow under the car, and that might lead to extremely disastrous results in high speeds, especially if the pressure under the car gets higher than over it...
Just a disclaimer, though... this is by no means an expert's opinion, just something that I got through my interest in car design...