Disclaimer : i work on one of these car manufacturers IT departement, in close link with the "connected car" team. The reasons are multiple. 1) building and up

Disclaimer : i work on one of these car manufacturers IT departement, in close link with the "connected car" team. The reasons are multiple. 1) building and upgrading a car model take them at least 2 years... in the meantime, they have time to clock the kilometers anyway. 2) They have no idea how to build that type of data "massive" environment. They just don't know. Like all our "connected car" data came onto one single thread acceptor on one single machine. No load balancing, no scaling nothing, until August when the vacations congestion overflooded it. So now we have 4 threads in that single machine. I could ramble on and on on this type of mistakes they do. They just don't know. And this year, they asked the team to reduce their budget. Because it is how the car industry works. After two years to kickoff the project, you have to cut your cost by 5% to 10% every year.