Software has become a pillar in the transformation of the Automotive industry, especially with Elon Musk's hopes of witnessing the first fully autonomous vehicles blossom right in front of us in the next 2 years.
That being said, proprietary systems and software used in every car manufacturer is one of the 'road blocks' to why automotive breakthroughs take an extended amount of time; there's little to no code sharing.
The Automotive Grade Linux (AGL) project, like GitHub are trying to develop a commonplace where developers in the Automotive industry can build applications, and are able to share with their respective communities with one goal in mind, streamlining the innovation of this industry.
In 2017, a report from Visual Capitalist showed that software for the automotive market contains upwards of 100 million lines of code. To give some perspective, only Google, with all of their services, was said to have more code in their products.