Norway buys ~ 150,000 cars per year (just 1% of the cars bought each year in the USA). Scale matters.
Norway charges a vehicle tailpipe emissions tax.
Norway does not charge any import tax on EVs, which are applied to ICEVs.
Norway does not charge 25% VAT on EVs, which is applied to ICEV.
Norway does not charge road taxes for EVs, which are applied to ICEV.
Norway does not charge road tolls for EV, which are applied to ICEV.
Norway reduces company car tax by 50% for EVs.
Norway's governments are required to purchase only zero (tailpipe) emissions vehicles.
Norway provides more favourable parking arrangements and lane access arrangements to EVs.
Norway invested heavily in EV charging infrastructure.
True,
USA has domestic EV manufacturing "Buy American" Tesla, Ford, GM,
USA already has good developed charging network and the Government is investing Billions in more charging
USA has cheap electric compared with Europe
USA people drive a lot of miles commuting - ideal use-case for EVs. While Europeans often have alternatives. (Bus, Train, Subway etc)
USA you got preferred Parking and Lanes for EVs (Florida and California)
USA many states do not charge road taxes for EVs either. (Gas tax pays for the roads)
USA has a dying Gas-Station Network
In parts of the country - I get range anxiety with my Gas guzzler, since every 5 Gas station in drive into is out of business
When this trend accelerates - EV will be the only choice for some people.
Like I said I used to work in Energy Economics, we did this kind of predictions. Not always right
I've spoken with a few old contacts at OEM car manufacturers, and they have their Books with Electric car orders filled till eternity.
If they would have the capacity today they could sell millions of EVs right now.
It's not a demand issue - its a supply issue.
Yes, however, are the supply chains going to keep up with that sort of growth over the next 5 years?
Exponential trends are way easier to maintain in the early stages. It gets significantly more challenging each year. The other charts you show are more like a typical sigmoid function, which looks exponential in the early stages for a while but flatten out. Why they flatten is the issue at hand.
Supply chains are a mess, no idea if it will make the transition that fast. Not my specialty.
This will be a Double S-Curve, It will be exponentially till like 80% (if not hampered by supply) and then flatten out and the last 20% will take forever. Remember 100 years after the introduction of the car there are still Horses used for transportation, we never achieved 100% transition
There are niche applications where EVs are just not good.