Well typically the only ones I go by are iracings because it's the only sim typically worth racing on.

You're still pretending it's in any way comparable to racing. It's not, you're literally playing a video game. Calling it a "sim" doesn't change that.

I guess I'm curious as to how you define being "ahead" as the outside driver?

Literally, being ahead. It's not a hard concept. Ahead of the other driver.

Then the question arises of who is attempting a pass here.

Impossible to tell unless you saw the whole straight from the last corner. The beauty of the rules is you don't need to know though. It's all about who is in what position going into the corner. It's so simple that way and if you knew the rules you would understand that.