I’ll start: printers.
I bought an HP in March 2020 when my job went remote and HP bricked it remotely after only 100 pages because I wouldn’t sign up for their subscription program. Ended up trashing a perfectly good printer.
Luckily my library’s close by and I can print there remotely.
Later model cars with internet connections or telematics antennas are likely sending info about whatever they can, whenever they can, but such things can be disabled easily enough.
Which manufacturers offer free Internet connections in their cars?
Its free for them when its sending your info to them.
Which manufacturers do this and in which models?
All of them after about 2020. Are you sealioning or do you live under a rock?
https://www.acg.aaa.com/connect/blogs/5c/auto/how-vehicle-data-is-collected-and-used
Collecting data is one thing. Wirelessly transmitting it to the manufacturer is another.
Which manufacturers have built in 3/4/5G connections for free that transmit data back to them?
This data is all kept on the vehicle unless you then use an app on your phone to send it back to them or a third party, or your car is in an accident and they get the data to investigate.
So again - which manufacturers and which models have built in wireless connections that transmit data back?
Bug off, sealion. You aren’t going to accept that telematics antennas exist, therefore you have no idea what you’re talking about and can be ignored.
Still haven’t named a single manufacturer or model. Strange.