Is there a list of new cars with no/low tech? I assume you are referring to network connectivity in particular (telemetry/remote control being especially risky).
Discussion
I guess it depends on the country, but in many places it would be a list of zero, due to government mandates. (for example E-call, emissions reduction, etcetera). I think old cars will be the only option for the foreseeable future, which will become a problem as they eventually rust out or break down.