Mapbox, the firm that creates map software using mainly open-source data, announced Wednesday its official bid to build that map, with a new product called Mapbox Drive. It’s a map with the ability to direct a semi-autonomous vehicle with enough accuracy to make tight lane changes, and offer real-time traffic and road condition updates to the user.  It also marks a big entry into a new market for Mapbox, which has long been known for its fascinating geo-visualizations and suite of mobile app-making tools.