Here we are, almost 1 month later and here I am with DiRT 3's respawn glitch

Here is an example of the correct spawn glitch: (I recommend watching in 0.5x watch speed)

Details: This method can save up to 0.3s, results of the spawn glitch could deminish on maps with bumpy or sloped starts such as Leopard Rock and Hafjell Descent are 2 examples.

This guide talks about how to do the spawn glitch, and how you know if you have done it incorrectly.

The way I do my spawn glitch is that I try to match a piece of environment and when I see it either enter or leave the screen, I will pause the game and press "restart", this way, it makes the spawn glitch easier to time and thus, more consistent. This would later be necessary because this glitch would cost around 16% of run time assuming your run is 2 minutes long which is around average for a DiRT 3 IL run.

I also recommend to try not to do a spot on the end of a banked or bumpy corner as that would make it more difficult because your angle could be off by enough to make it difficult to perform the spawn glitch.

How to know if you did it correctly or incorrectly:

If you do it too early, you will notice that the restart animation is very similar to normal, you will notice that it might look glitchy and you could also see remnants of the start line in the form of horizontal and vertical lines.

If you do it too late, it will be the opposite way around, you will see remnants of the out of bounds respawn such as the respawn animation or camera angle before you have been sent to the start line when you press restart.

If you did the spawn glitch correctly, you will be sent to the restart point, however, you will see that you get respawned at the default respawn point if you go behind the finish line.