How will autonomous cars pay for things?
Driverless cars need to be able to carry out all the tasks currently handled by humans. That doesn’t just mean shifting gears, accelerating, braking, steering and observing the environment. It also means conducting the sort of financial transactions that are part and parcel of motoring—paying for tolls, parking, fuel, etc. Enter Car eWallet, a subsidiary of German technology pioneer ZF.
https://www.automotiveworld.com/articles/how-will-autonomous-cars-pay-for-things/