The November 2017 issue of Consumer magazine rates the Nissan LEAF as the most reliable car in NZ of 23 brands and 69 models, with a 97% satisfaction rating.
That would certainly match my own experience. No issues at all in 17 months of driving a LEAF. Just keep the windscreen wiper fluid topped up and the tyres good.
Plus I don't buy any petrol and it costs about $2 / day to run in electricity charging at home. I've had it serviced by Manakau Nissan out of curiosity rather than need.....and they haven't found any issues. I did buy two new tyres after driving 40,000km in 9 months....