The task does not specify where the car is. Maybe it’s at the car wash already, otherwise why would the person ask such a dumb question?

Conduit, around 100 users, barely breaks 0% usage in a Intel i5 micro PC. RAM is around 1GB used.

Not really understanding what problem you are trying to solve, but I have a 50 people Matrix server on Conduit, it’s running great, uses minimal resources and takes just minutes to set up. All clients support it and I haven’t seen any missing features yet.