The tax benefits in Norway is still intact.Europe demand has been impacted by reduced or eliminated tax benefits in Norway and Denmark.
But other incentives like using the bus-lanes has been "temporary" stopped around Oslo (where almost the only buss-lanes that is of any real value is) - and it is temporary until about the end of 2017 where they can remove them permanently. Some places they have started to take a fee for BEV's on ferries, in some places there will be a fee for parking from 1/1 2017 and from the end of 2017 (just one and a half year to) even BEV's may have to pay for toll-roads (probably less then fossil-fuel cars). But to buy BEV's "tax free" is still intact - until the end of 2017. Exactly what will happen then is still unknown, but it is likely that it will be the 25% sales tax from 1/1 2018, but some still unknown way to get it back - up to some still unknown "roof".
So there is a lot of insecurity about the BEV benefits that has slowed down the BEV sales in Norway, and especially Tesla based on the changed exchange-rate USD/NOK.
... and I hope my Model 3 will get under this roof as I see no hope to get it before 2018