Well, sure. And to repost, such a retro-tech would NOT be Cyberpunk 2020.
What's the big example? Big cellphones? Again, 2020 had palm-sized ones already. No wireless? Wireless Cellular was in the game. For computers and devices.
Now, secured wireless..for that you need a Dataterm. And, yes, smartphones, those were not. But small portable computers were, and wearable computers yo could use to hack into NASA, as well as Virtual Reality and braindance.
Cars used a biofuel, grown, not pulled from the earth. There are some flying cars. The Internet IS everywhere AND you could digitally enter it as a virtual reality sim. Cars had autodrive. Food was soy and artificial. Medicine was nano-assisted. There are smartgoggles and smartglasses MUCH more potent than Google Glass.
Really, 99% of the tech in Cyberpunk 2020 was and remains still wellllll ahead of our tech right now. In order to get 80s tech, you'd have to throw out the stuff already in the PnP and make up new stuff.