Vanishing Point Detection in VDrift

[NaN]

You could abuse the racing line as an additional visual cue. If you disable racing line calculation in track loader the default racing line will be the road center I think.

Car AI also had some debugging code that would draw road patch outlines ahead of the car. I am not sure if it is still working though.

The track itself is defined is a list of roadstrips. A strip is a list of (bezier) patches.