i take it 56.6 is the centre bore? if so then no they wont direct fit, as the centre bore of the micra id 59.1 i think, so will need to be machined out ideally.
if the alloys have spiggots in which they should, just remove them with a hammer and punch and use the nuts to centre the wheels i have done this and have wobbling upto 100mph
if the alloys have spiggots in which they should, just remove them with a hammer and punch and use the nuts to centre the wheels i have done this and have wobbling upto 100mph