[swannymere]

Rather than going down the expensive route of replacing the mirrors, have you thought and/or tried fitting blind-spot mirrors that you get from Halfords?

Found these on eBay, big 7.5cm;

http://cgi.ebay.co.uk/2x-All-Ride-Adhesive-Blind-Spot-Mirror-7-5cm-Diameter_W0QQitemZ220521361125QQcmdZViewItemQQptZU K_CarsParts_Vehicles_CommercialVehicleParts_SM?has h=item335818eee5#ht_1259wt_1167

or regular sized ones;

http://cgi.ebay.co.uk/BRAND-NEW-CIRCULAR-BLIND-SPOT-WIDE-ANGLED-MIRROR_W0QQitemZ390078697313QQcmdZViewItemQQptZUK_ CarsParts_Vehicles_CarParts_SM?hash=item5ad2808f61


just fit them to the outside edge of your std. mirror and hey presto £75+ saved, potentially.