I have built four cars.

Two 1/10 scale model level. My original and my new one. The new one is inherently much faster. They are both the same car from the same company.

Two toy level:
One 1/12 scale which is similar to Frits'.
One 1/10 scale which you saw in my video.

Maybe I should bring them all to the gym on a sunny day for a grand comparison.

Ken