Why do carmakers want a slice of Nokia’s maps?

Now, rivals BMW, Mercedes-Benz and Audi have joined forces to buy Nokia’s alternative to Google Maps, if rumours are to be believed…
Cab app Uber was first named as a contender when Nokia put the business up for sale this year. It opened its own research centre to improve mapping technology for cabs as well as driverless features in partnersip with renowned Carnegie Mellon university in the US. But sources have told Reuters that a deal with a group of German carmakers is almost signed.
The deal would place the German car manufacturers at a distinct advantage from other carmakers in the connected and driverless car race, and offer revenue streams promised to more digital business models.