Wow! It must be pretty special at that price...
Maybe the 35iS for NZD$39990 (AUD$36,067 / £21,191) isn't so bad after all...
And this would have to be one of the cheapest E89s in NZ at the moment,
https://www.trademe.co.nz/motors/used-c ... 074770.htm
but it's 'only' the 23i and fairly basic spec.
Still at $28,500 (£15000) and very low mileage (22,600Km/14000Mi), it wouldn't be awful, just not what I'm looking for.