Random frame rate 15, 22, 30 fps

Hello

It’s possible to change the frame rate randomly in this 3 frame rates 15, 22 and 30 fps from one movie that is loaded into other ?

how could do that?

the effect I want is one car cross the stage in one of this 3 diferent speeds to make the impession is not the same car.

The structure of my project is as follows:

parrent movie
car crosing movie ( loaded randomly from 5 or more movies each with different car model, like random banners) <<this movie plays at randomly speed chosing from 3 different frame rates

its not necesary extriclty change the frame rate, searching before and maybe what I need it’s impossible but I guess jumping frames give that impresion

example,
total frames = 50
If randomly asign a number that plays only the frame 1+n (n= 2,n=3 n=4) the frames 1, 3,5,7,9,11,13 … that give us one frame rate faster than playing each single frame 1,2,3,4,5,6.

Thanks