Can´t say I know enough about the topic, but I find It Interesting to see how deep these guys get Into It... Interesting to know how rF2 handles this and the throttle sensitivity. Keep Racing!
You should look at Niels' source video instead of a video referring to it. Though Nils does mention rF2 as one of the ones Niels mentioned, with a better model. You can also open up the rF2 physics spreadsheet and jump to the Engine tab. It has a throttle-rpm map sitting right there.