hi, it aint cruise control unfortunately if your travelling at 30mph and you press and hold the button on the steering wheel, it sets an audio alarm if you hit / go over 30mph i found this out on my acenta when i thought it was cruise control :(
hi http://www.ebay.co.uk/itm/NISSAN-MICRA-SPORT-DCI-C-C-GREY-16in-ORIGINAL-ALLOY-WHEEL-GOOD-TYRE-GN3-/301592217483?pt=LH_DefaultDomain_3&fits=Car+Make%3ANissan%7CModel%3AMicra%7CCars+Year%3A2009%7CPlat_Gen%3AMK+III%7CCars+Type%3A1.2+16V&hash=item46384c078b does this look like the wheel (its bashed up but just to get idea of what it looks like)