Well,
at least a possibility to get the "fuel level" and the miles or kilometer of the car.
I searched a long time around the Google world, and I do not find any possibility without taking hundrets of Dollars to get those Infos of some opels.
My hope was to get this with an arduino or raspberry and some connectors to can bus. But I do not find anything to get more information.
My brother in law has 10 service cars. It would be great to have a cheap possibility, to get the values by wlan.
Best Regards
Heinz