Mod's removed first posting due to too much truth (what they call "snippiness"), so I've removed some material for their gentle eyes.
Yes, older cars don't perform like new cars, and I'm sorry that Tesla felt it had to cap SC speeds to keep batteries from "lighting up" as we've seen in some videos.
But to replace an EV with a non-EV is unconscionable and either massively ignorant, or just plain evil, in light of the facts. Shocking that an early adopter would be so unknowing--he should have just purchased a new MS; we're on our eighth, doing our part to populate the planet with Teslas.
Assuming the OP has children, it's going to be a real event when the planetary-scale problem they face, that will make COVID-19 look like a friggin' picnic, has them ask,
"Why didn't you do something when you knew what a century+ of dumping GHG's had done to our planet?!?" The answer, "Well, I did for a few years, but then Tesla slowed down my Supercharger speed a bit in 2019 really pissed me off . . . " is going to sound pretty sadly pathetic, no?
NASA: Climate Change and Global Warming
As a species, we're in even deeper trouble than we know if there are too many out there like the OP.
This isn't a car, it's a friggin' mission.
Get with the program, please.
"You're either part of the solution or you're part of the problem."
--
Eldridge Cleaver