In the end, the KIA car company made its cars into subscription models, I really hate this because in the end the car we buy with our own money doesn't feel like it belongs to us. Should we finally buy an old school car ? so as not to be affected by this subscription models or is there a way to crack the software installed in it ?
I'm betting they're paying more than the servers per car for the cellular connectivity.
It's not what we pay obviously. But it's not free either.
The traffic and compute for this kind of application is very minimal, a cheap server can hold thousands and thousands of users.
It's the cellular connectivity that costs a lot, difficult to imagine that would be less than 50 cents a month
They could be paying licensing per user for some third party solution that meets the security requirements of stuff like remote unlocking. (Yeah, they also could do it themselves, at the cost of hiring a couple security experts, and the scale should make it pretty cheap per car, but a lot of the times companies like to hire it out so they have someone to point to if there are flaws.)
They could also just not care and do a shitty job, but doing the software part correctly isn't free either. But yeah, cellular with how little they use it and economies of scale isn't going to be a massive outlay, but it's something that makes some sense to have behind a paid service. Right now it's not a huge cost, but down the road, if they're paying for 20 years of cars worth of connectivity when most of them aren't used, it could add up to meaningful expenses that are pointless.
low-bandwidth data plans in bulk are pretty cheap. it's what many atms, vending machines, redbox and similar, etc., along with sensors and gauges, and what-not for a variety of applications, use.
over the expected lifespan of a car, it would cost the manufactures less than they charge for a set of floor mats.