I had an absolute nightmare trying to register the GTA.
Vegvesen could not have been less helpful.
I don't know about the A310, but none of the manufacturers who make the GTA ones offer the correct TUV certification.
SPAX and GAZ both have TUV approval as companies, but don't offer the certification on the individual items.
Apparently vegvesen needed to see corner weights, ride heights, spring rates etc, which it was impossible to provide.
Not to mention a complete alignment report from whoever had fitted it, detailing if the kit had made any difference to factory settings.
I spent 2000 NOK getting a report done for them, then they refused to accept the TUV papers GAZ had given me.
Eventually I gave up.
I bought a set of standard shocks and springs and fitted them for the first approval then put the GAZ back on after I got home, I guess unless I can find a friendly tester, I'll need to put the originals back on for the EU kontroll too.
When I presented it again after refitting the originals I had to spend another 2000 to get the alignment adjusted and certified again....
They also got hung up on the tyres being different sizes and asked for manufacturer verification that it was like that from the factory.
They wouldn't accept the dealer brochure, nor the data sheet from the club, and even when I went to the Renault dealer and got a signed stamped letter saying they should be like that, I had to fight as they weren't going to accept it, because it was Renault, not Alpine
It will be nice if they pass this motion to only test old cars every 5 years, then it will be possible to get away with more.
With the power of Amcar, it's SO much easier to bring an American car in, Vegvesen seem to be scared of them.
The Renault/ Alpine club in Norway were not much help either