Why it worked
The video likely performed well due to the inherent appeal of high-performance cars like the Supra, combined with the engaging "guess the HP" format and the dramatic visual of flames from the exhaust.
Summary
The video shows a white Toyota Supra on a dynamometer. The car is strapped down and the engine is revved, producing flames from the exhaust. The video then shows close-ups of the engine and the dynamometer readings, which indicate high horsepower.