It happens instantly only when pointing in the direction of the track. Take a close look at the demo, it also happens in there but is not easy to notice. If you enlarge the track you will see it well.
- I'm using GMS2
- No big changes. Only the way the "accel" variable is modified when pressing the up key to make it non linear (I'm trying to recreate an engine power curve). No changes were made to the d3d logics.
- This effect happens when the car is stopped or under certain velocity, it just stops moving forward but keeps moving to both sides depending on direction. I've tried this with the source code unchanged with a larger track.