I reckon your car will fail before they sort out the Brexit. At least 10 years???
The Norwegians are threatening to veto the UK joining the EFTA group which is one of the key matters when leaving. That's the thing you have to join if you want to have tax free dealings with the EU. Or, as the Norwegians say "Pay the EU the same as you would if you were in it, but not have any say in the matter".
And yesterday the French and Italians said that the UK should not be allowed access to Galileo and Copernicus, which are the alternative satnav and location systems. More accurate than the current US based system. But the rules say that it's a security matter and only available to EU members. It would mean that the UK's intention to use satnav for road pricing would be dead in the water, so maybe not all bad then...