While certainly impressive, that's been true of F1 cars for decades.

Let's hope that they'll introduce that for next year then.

(I might be able to watch it for longer than three minutes then)

I think the majority of such claims are misunderstandings of "generates downforce equal to its own weight" which is most certainly not enough to drive upside down.

The only case of a manufacturer actually wanting to perform a test was Gumpert with Apollo, according to Top Gear UK (take it FWIW).

I think the fuel and oil are gravity fed, or aren't under enough pressure to work upside-down.

I love watching the cars as they come out of a slow corner, they look like they are prancing on their toes, then as they speed up they 'suck' down to the ground... really cool

I heard that several types of race cars could stay upside down at 100km/h. In 2000 F1 was reaching 300km/h on most circuits, less now. I guess that means it could be upside down on a higher gravity planet.

I'd like to see this attempted, Mythbusters style.