There's a lot of effort right now going into making OSM itself better for car navigation. (Take a look at the OSRM changelog: pretty much every feature in the l

There's a lot of effort right now going into making OSM itself better for car navigation. (Take a look at the OSRM changelog: pretty much every feature in the last 6 months seems to be targeted to this use case.) And I'd say OSM is already better than Google for cycling and walking routing.