[Simon Meisinger]

One thing that I find funny in AC is when gearing up with the H-pattern and clutch, as I don't need to take my foot off the accelerator when I engage the clutch. The engine revs increase dramatically and max out as expected but the engine receives no damage, no matter how long I hold this (unless I set the engine limiter to be greater than 100%, but I don't do this at the moment). I'm not sure why this happens, I would have thought for sure this would damage the engine no matter the engine limiter setting but maybe there is something that I don't properly understand on how that stuff works. I definitely wouldn't do that with my car in real life, that's for certain.

That's called "power shifting" and doesn't hurt much, I do it every now and then with my real car. It's probably not good for your transmission if you do it every day though.

And you engine doesn't get damaged because the rev limiter is set that it cuts out before the engine can get damaged. So both of those things can be considered "real".