I think you can still make phone calls on an iPhone 3g.
You can even send texts and emails. Basically it gets you from A-B. But if you want To shoot 4K HD movies on your phone you’re gonna need to upgrade.
Whatever chip you get today, or 3 months from now is going to be relatively obsolete in 5 years anywa and the Tesla cars from 5 years from now are going to be magnitudes greater in feature, design and tech. And they will have newer better chips that might support features todays AMD or Intel can’t.
I don’t want a 2014 Tesla today anymore than I will want to be driving my 2022 Tesla in 2030. Think about it, the “future proof” argument is ridiculous.