Modern cars are nowadays becoming very mobile computers and future average car is expected to multiple, powerful computers in it. As an open source developer I recently joined BMW for the development of the computing platforms for their future cars. In this talk I will share the basic outlines of what the computing platforms in a future car look like, what open source tools and projects are being used for these developments and how. I will also describe what impact Debian development processes have on software in the cars and what could be done to make this collaboration tighter and more effective in the future.