The article says that the manufacturer of this new car ''has developed a patented fan system — dubbed Downforce-on-Demand — that sees two high-speed fans generate enormous suction beneath the car to effectively “suck” it onto the road, giving extra grip, similar to a vacuum cleaner.''
I'm disappointed to see no mention of the Chapparal 2J race car:
https://en.wikipedia.org/wiki/Chaparral_2J
The article says that the manufacturer of this new car ''has developed a patented fan system — dubbed Downforce-on-Demand — that sees two high-speed fans generate enormous suction beneath the car to effectively “suck” it onto the road, giving extra grip, similar to a vacuum cleaner.''
Is the Chapparal 2J prior art?