[quote=@Dinh AaronMk]
<Snipped quote by Willy Vereb>

You're also under-estimating the logistics which would make any notions of producing the same tier of technology as would have been enjoyed pre-war impossible. It's like you didn't read. Let me refresh you:

<Snipped quote>
[/quote]Yeah, returning to the same would be impossible.
Utilizing the same technology with a different allocation of materials? Absolutely.
You seem to be under the impression that people in the post-apocalyptic world want Toyota cars. No, they just want cars.
And again, future tech+ people in the Vaults literally spent decades to work out measures that can accomplish what they want with the limited resources.
Microchips, for example. Did you know that CNT is so versatile you can pretty much forget all thoe fancy nanoparticles before?
CNT can theoretically also be created by burning coal. Yes. Of course the actual solution would be more complex and I don't wager to tell the solution to something scientists with better qualifications than me are working on right now.
Similarly, electric power. DMFC which is basically a battery converting methanol and oxygen for electricity. Sure, it'd require platina electrodes. Except it doesn't. Why? CNT. Efficiency can be a problem, too. Except CNT solves that. Dem three letters are good.
Where do you get the tools to make these? Underground CNT fab. Like it or not to house hundreds of thousands of people you practically need to build an underground city. So why stop at the base requirements? Especially in case of sci-fi.
And yeah, CNT is promised to work wonders in so many fields. The inner skeptic in me already tells that half of these would eventuall turn out to be sham.
Regardless, this is sci-fi. This is fiction. As others said we aren't making a paper on theoretical development level of people 200 years after an apocalyptic war in 2080. We write a collective story. 
So get used to the pew-pew lasers and other technological elements. No, this does not destroy the setting. Again, Fallout is a longshot from the vision you depicted in your previous posts.