The insane mode is said to be, well insane ....
In Norway, Tesla Model S is quite affordable compared to competition, as it's without VAT and without any taxes
Which means other cars are darn bl%¤#y expensive
And you can drive in the bus lane, there are no road taxes, no tolls on any toll roads, and you can take it for free on any ferries, free charging in all public places, free parking .... anywhere
Pretty good incentives for electric cars