https://medium.com/@trentseed/connecting-a-bmw-to-the-internet-part-one-fbe18a54121d

I’ve decided to kick off my personal blogging by going through a recent project; connecting my BMW to the internet. By the time you finish this blog series, we will have walked through the project motivation, architecture, and will have examined the code necessary to interact with an E46 BMW wirelessly from your mobile device and smart watch. The full source code can be found on GitHub.

I am among the many individuals who commute from the peninsula to San Francisco practically every day, and endure an hour to an hour-and-a-half each direction. I needed to find a way to optimize all of this time being spent (up to ~10 hours / week). An additional motivator for this project was the fact that the original navigation unit in the vehicle had an increasing number of dead pixels.