I love those things! They use them in F1 racing too.
I am curious as to how heavy they are, I believe they use compressed air in a tank, rather than an actual air compressor to use them, or they use an external compressor in the pit, like on the car pictured.
They are probably quite expensive, so I will keep using my professional floor jack for now
I bet the idea originaly came from Mach go go go!
(called Speed Racer here in the USA)