How do you activate the end warp glitch? Is there a specific way of doing it?

How do you do the glitch where Bullwinkle is doing the sliding on the ground?

So, I have submitted a guide for speedrunning Back to the Future. Any feedback is greatly appreciated.

So, I did an almost flawless of run of Back to the Future with a time of 17:11 or 17:12. Is it possible to add Bad Ending% just on the chance someone can get that good a time, but can't navigate the car due to RNG thunderbolts?

My video of said moment