See this:
https://forum.supertuxkart.net/thread-362.html
The animation and the dialogue were fairly cool, but the ideas themselves are, well, not that original. You already admitted that the first 2 ones are inspired by ST and STK respectively, and the third one also seems a little if not staight out too straightforward.
They're for sure not terrible, but my vision for the plot is more complex than that. Regardless of how it ends up, it shouldn't try to appeal to everyone unless we wanna make it appeal no one.
I challenge you to make an Idea #4 inspired by my story as well, maybe it ends up better than I expected. As a side note, my plot outline draft is already done, but it's currently only visible for me and Alayan. I also mentally fleshed out the personalities for a few more characters.
Since STKE is aiming at a much higher quality in pretty much everywhere, the Story Mode plot shouldn't be an afterthought either, and, in my opinion, someone serious about it should write it. Obviously that doesn't have to be me, but I'm really happy and very willing to help, but I have to admit I came here for the Story specifically, and not jusy to contribute.
Anyways, here's my catchphrase: