F1 cars have long since stopped trying to be as fast as humanly possible. Making a car that is faster than an F1 over 1 lap is impressive but not exactly unexpected. I would like to see the McMurtry attempt a full grand prix and see how fast it is.
IDK what a grand prix is. McMurtry uses downforce fans which were banned from F1 some decades ago, so it would not be allowed to compete in F1 or formula-E or whatever. Otherwise it would beat all the conventional cars. The downforce fans give it too much of an advantage, which is why they are prohibited now.
TLDR: they entered a fan car in 1978 that beat everything else, but provoked enough opposition that they pulled out of competition and the technology was banned. The present-day Spéirling was inspired partly by that car.
Also: https://fancarexperience.com/ pay $5000 an hour to drive the Spéirling around a track. Different packages available starting at $500 for a quick ride and acceleration test.