In the meanwhile, I'm exploring how to add position (latitude, longitude from GPS) and display these positions on a Map.
Till now, I don't have a working GPS module on my RPI (I have two available, still in test phase).
But, since I have decided to use a SmartPhone to provide connectivity to Internet, one solution I have found (for now) is to use OwnTracks.
In addition, I have added WorldMap to my NodeRED instance. And, with a simple flow, I'm able to show the current position of my Car on a Map.
Amazing...
In release 2 of my project, I'll integrate it with Oracle IoT Fleet Management. With this integration enabled I'll get many more features. An example is the view shown below, that shows cars' locations on a map.
Stay tuned.