Well I know a few who are fully EV and love it -particularly the Tesla Ludicrous chip, however there is nothing green about it in NZ -currently we are importing Indonesian coal to burn in the power stations!
NZ gets 82% of its electricity from renewables. An electric car makes excellent sense.
https://www.energyresources.org.nz/oil-and-gas-new-zealand/our-energy-mix/Yes, you're having to import coal at the moment because of the gas failures, fall-off in hydro capacity, and to keep the lights on for a growing population, but I don't think it's entirely fair to paint it as a dirty energy mix.