You could get away with simply not paying, as collection would be too much of a hassle. But they'll note your plates and the next time you're back into Norway and your plate gets scanned, they might visit you right on the spot to collect your debts.
Insurance paid for the repairs to the car, and apparently the insurance company arranged for an outstanding warrant on the truck/driver, and several years later my friend got a notice from the insurance company that the truck driver had been detained upon entering Finland and forced to pay.
Same thing does not really happen with camera-issued fines, even if technically feasible given a good quality picture of the drivers face.
The Antwerp police had to send the ticket to the Netherlands, because that's where the car was registered. Which took some time to go through the political process.
But the car was a lease, so the police had to re-send the ticket to the company I was working for. Which took some more time.
Then the company pointed out that I lived in Brussels, so the police had to re-send the ticket again. Which took even more time.
I finally got the ticket more than a year after the event, and I went down to the local police station to find out what I had to do.
The local Brussels police took the ticket and looked it up in their systems, and finally told me that the ticket was expired and had not been sent to me in time (there is apparently a one year grace period), and so I didn't need to do anything at all.
Dutch LE doesn't have any tools to compel entities outside of their jurisdiction to provide such data.
There might be fines associated with the plates, but fines are the responsibility of the driver and not the owner. Even if the cops were able to ID as you the driver in those previous incidents, they would not be able to seize the car (not that this would generally be possible without an extensive legal process anyway).
And FWIW in the case of Norway, you will never get stopped for having unpaid fines.
