Luckily for them, two of the friends were part of Fast Toys Club, which had those cars at the ready. Naturally, they took the cars to the track and put a racing driver behind the wheel. Each car went around the track for a time trial and the numbers from each lap were compared in order to see who was right about the supercars and, ultimately, see which of the four cars was the fastest.
Check the video below to see if you guessed right!