Norwegians trust the government way too much, because they believe that this system will eliminate the need for road tax, fuel tax, toll roads and reduce the cost of car insurance.
No way will the tax be reduced! GPS based taxation is a governments dream! Who is to stop them from issuing parking fees or speeding tickets?
Norway also has a high number of electric cars, and an electric car is sold without any tax or VAT, has reduced road tax, free of reduced toll road passage and does not contribute to fuel taxation. With GPS active, the government can finally collect taxes from electric cars without the messy environmentalists meddling.
In the worst case, a corrupt government can use the system against its people to create implications, push the burden of proof over to a troublesome citizen, in court.